# HawkOpen — Questions and answers (English)

> Short, checked answers about email tracking, read receipts, campaigns, documents and signatures, plans, privacy and the law. Each answer says what the product does today.

> This information is general and concerns the features of HawkOpen (TriStiX S.L.). It is not individual legal advice or an assessment of whether a specific campaign or document complies with the law. Customers make their own decisions about their activities and, where needed, consult a qualified specialist. This does not limit any rights they have under mandatory law.

URL: https://hawkopen.com/en/faq
JSON: https://hawkopen.com/en/faq.json
Checked: 2026-11-13

## Integrations and CRM

Which tools HawkOpen connects to, what its webhooks send, how links work with analytics, and what the built-in CRM contains.

URL: https://hawkopen.com/en/faq/integrations

### Does HawkOpen integrate with my CRM, such as Pipedrive?
<a id="does-hawkopen-integrate-with-a-crm"></a>

URL: https://hawkopen.com/en/faq/integrations/does-hawkopen-integrate-with-a-crm

Not directly: HawkOpen has no ready-made connection to any CRM, including Pipedrive, and no public API with keys. On the Business plan it sends signed webhooks for opens, clicks, replies, bounces and unsubscribes, which you can pass on, for example through a Zapier Catch Hook.

A webhook is a message HawkOpen sends to a web address you choose whenever something happens. Each message is signed with a secret that only you and HawkOpen know, so the receiving tool can check it really came from HawkOpen. Failed deliveries are retried a few times.

If you do not use a CRM yet, the Pro and Business plans include HawkOpen’s own simple CRM; on Free it is a paid add-on with a 21-day trial. Many CRMs also offer their own email tracking; if you track in two tools at once, the same email gets two sets of tracking elements.

Related questions: [Does HawkOpen have a CRM for Gmail or Outlook, and is it free?](https://hawkopen.com/en/faq/integrations/does-hawkopen-have-a-crm-for-gmail-or-outlook), [Do HawkOpen tracked links work with Google Analytics and UTM parameters?](https://hawkopen.com/en/faq/integrations/track-email-link-clicks-in-google-analytics)

Checked: 2026-11-12

### Do HawkOpen tracked links work with Google Analytics and UTM parameters?
<a id="track-email-link-clicks-in-google-analytics"></a>

URL: https://hawkopen.com/en/faq/integrations/track-email-link-clicks-in-google-analytics

Yes, side by side. When a link is tracked, HawkOpen counts the click itself and then sends the person to the link exactly as you wrote it, UTM parameters included, so Google Analytics sees the visit as usual. HawkOpen does not add UTM parameters and does not connect to Google Analytics.

UTM parameters are labels at the end of a link (utm_source, utm_medium, utm_campaign) that tell an analytics tool where a visit came from. Add them to your links before you send; HawkOpen keeps them.

HawkOpen tracks a link only where your company has switched link tracking on and the recipient has consented to it; otherwise the link goes out unchanged and only your analytics tool sees the visit. Only https links are tracked; plain http links are left as they are. Expect the two tools to show different numbers: HawkOpen labels clicks by security scanners and link previews, while a website counts only visits that load the page.

Related questions: [Does HawkOpen integrate with my CRM, such as Pipedrive?](https://hawkopen.com/en/faq/integrations/does-hawkopen-integrate-with-a-crm), [Why was my link clicked seconds after I sent the email?](https://hawkopen.com/en/faq/accuracy/link-clicked-seconds-after-sending)

Checked: 2026-11-12

### Does HawkOpen have a CRM for Gmail or Outlook, and is it free?
<a id="does-hawkopen-have-a-crm-for-gmail-or-outlook"></a>

URL: https://hawkopen.com/en/faq/integrations/does-hawkopen-have-a-crm-for-gmail-or-outlook

HawkOpen has a simple CRM. It is included in the Pro and Business plans; on Free it is a paid add-on with a 21-day trial, then €3 a month or €30 a year plus VAT. It keeps companies, contacts, opportunities with stages and tasks, and shows each contact’s email activity next to your notes.

Opportunities move across a board through the stages of a pipeline; the default stages are lead, qualified, proposal, won and lost, and an owner or admin can change them or add pipelines. You can import records from a CSV file and export them to CSV. It runs in the HawkOpen dashboard, next to the mailboxes you connected, rather than inside Gmail or Outlook.

It is not a full sales platform: there is no automated email sequence and no ready-made link to other CRMs. On Free, the add-on trial needs a card at the start and allows up to 1,000 contacts; the paid add-on allows up to 5,000, Pro up to 25,000 and Business up to 250,000. You can cancel at any time; after that the CRM is read-only and can be exported for 90 days, then its data is deleted.

Related questions: [Does HawkOpen integrate with my CRM, such as Pipedrive?](https://hawkopen.com/en/faq/integrations/does-hawkopen-integrate-with-a-crm), [How does the HawkOpen Intro offer work?](https://hawkopen.com/en/faq/pricing/how-does-hawkopen-intro-work)

Checked: 2026-11-12

### What does a contact show in the HawkOpen CRM, and is there an activity timeline?
<a id="what-a-crm-contact-shows"></a>

URL: https://hawkopen.com/en/faq/integrations#what-a-crm-contact-shows

A contact shows its name, email address, company, phone, job title, lead source, tags, your own fields and whether the person has opted out, plus a history with the newest entries first: changes to the record, your team’s notes and the emails sent to that address through HawkOpen, with their opens, clicks, replies and bounces. The CRM is part of the Pro and Business plans; on Free it is a paid add-on with a 21-day trial.

For a company, the activity list also includes what happened to its contacts, opportunities and tasks, so you see the whole relationship in one place.

The history also lists proposals, PDF links, videos and signature requests sent to the address. Opens and clicks are shown as proxy, scanner or other, never as a person; an email that was not tracked is shown as not tracked, and after the person refuses tracking, their opens and clicks are no longer shown. You can also link other emails from your connected mailboxes and documents to a contact or a company.

Related questions: [Does HawkOpen have a CRM for Gmail or Outlook, and is it free?](https://hawkopen.com/en/faq/integrations/does-hawkopen-have-a-crm-for-gmail-or-outlook), [Can I add notes, tasks and deals with stages in the HawkOpen CRM?](https://hawkopen.com/en/faq/integrations#crm-notes-tasks-and-deals)

Checked: 2026-11-12

### Can I import and export CRM contacts as a CSV file, for example from Gmail or Outlook?
<a id="crm-import-and-export-csv"></a>

URL: https://hawkopen.com/en/faq/integrations#crm-import-and-export-csv

Yes, through CSV files: the import with a preview takes up to 5,000 rows (1 MB) at a time, a larger file goes through the large import, and the export of each record type is limited by file size, not by a number of rows. There is no direct import from Google Contacts or Outlook, so export your contacts there as a CSV first.

When importing, you tell HawkOpen which column holds the email address and which holds the name; columns for the company, phone, job title, lead source, tags and your own fields are optional. The import with a preview saves all rows or none; the large import stores the file in batches and reports the rows it did not import.

Steps: export contacts from Google Contacts or Outlook as a CSV file, open the CRM in the HawkOpen dashboard, choose import, match the columns, check the preview and confirm. The CRM is part of the Pro and Business plans; on Free it is a paid add-on with a 21-day trial.

Related questions: [What does a contact show in the HawkOpen CRM, and is there an activity timeline?](https://hawkopen.com/en/faq/integrations#what-a-crm-contact-shows), [Does HawkOpen have a CRM for Gmail or Outlook, and is it free?](https://hawkopen.com/en/faq/integrations/does-hawkopen-have-a-crm-for-gmail-or-outlook)

Checked: 2026-11-12

### Can I add notes, tasks and deals with stages in the HawkOpen CRM?
<a id="crm-notes-tasks-and-deals"></a>

URL: https://hawkopen.com/en/faq/integrations#crm-notes-tasks-and-deals

Yes. You can add notes to any record, create tasks with a person, a due date, a status and an optional email reminder, and move opportunities on a board through the stages of a pipeline: by default lead, qualified, proposal, won and lost.

An opportunity also has a value with a currency, an owner and links to a company and a contact. A task can be open, completed or cancelled and can point to a company, contact or opportunity. Notes appear in the record’s activity list.

An owner or admin can rename stages, add their own and create more pipelines; each stage counts as open, won or lost. An analytics section shows charts, including a forecast. HawkOpen is still not a full sales platform: there are no automated email sequences. The CRM is part of the Pro and Business plans; on Free it is a paid add-on with a 21-day trial.

Related questions: [What does a contact show in the HawkOpen CRM, and is there an activity timeline?](https://hawkopen.com/en/faq/integrations#what-a-crm-contact-shows), [Does HawkOpen have a CRM for Gmail or Outlook, and is it free?](https://hawkopen.com/en/faq/integrations/does-hawkopen-have-a-crm-for-gmail-or-outlook)

Checked: 2026-11-12

### Can I tag contacts and keep saved lists in HawkOpen?
<a id="crm-tags-and-lists"></a>

URL: https://hawkopen.com/en/faq/integrations#crm-tags-and-lists

Yes. An owner or admin keeps the workspace’s list of tags, contacts carry tags (also from a CSV import), and you can filter the contact list by tag. On every plan you can also save recipient lists for campaigns.

In the CRM you can search contacts and sort them by name or date. Saved lists belong to campaigns: you pick a list as the recipients of a campaign. They are not a newsletter subscriber database with sign-up forms.

Related questions: [Can I add custom fields to contacts in the HawkOpen CRM?](https://hawkopen.com/en/faq/integrations#crm-custom-fields), [Can I use HawkOpen as a newsletter platform instead of a newsletter tool?](https://hawkopen.com/en/faq/compare/which-newsletter-platform-to-choose)

Checked: 2026-11-12

### Can I add custom fields to contacts in the HawkOpen CRM?
<a id="crm-custom-fields"></a>

URL: https://hawkopen.com/en/faq/integrations#crm-custom-fields

Yes. An owner or admin defines the workspace’s own contact fields, of the type text, number, date, choice list or yes/no, and each contact can have a value in each of them. Contacts also have built-in fields for phone, job title and lead source.

A field that is no longer needed can be archived. Own fields each have a column in the CSV export and can be filled from a CSV import. For anything else, write a note on the contact; notes appear in its history.

Related questions: [Can I tag contacts and keep saved lists in HawkOpen?](https://hawkopen.com/en/faq/integrations#crm-tags-and-lists), [What does a contact show in the HawkOpen CRM, and is there an activity timeline?](https://hawkopen.com/en/faq/integrations#what-a-crm-contact-shows)

Checked: 2026-11-12

### Does the HawkOpen CRM find and merge duplicate contacts?
<a id="crm-duplicate-contacts"></a>

URL: https://hawkopen.com/en/faq/integrations#crm-duplicate-contacts

Yes. For a contact you can look up possible duplicates and merge two of them, choosing for the name, the email address and the company which version to keep. A merge can be undone.

Merging is a deliberate step: HawkOpen shows a preview first and does not merge contacts on its own. Each contact keeps a history of its merges, which is where you undo one.

Related questions: [Can I import and export CRM contacts as a CSV file, for example from Gmail or Outlook?](https://hawkopen.com/en/faq/integrations#crm-import-and-export-csv), [What does a contact show in the HawkOpen CRM, and is there an activity timeline?](https://hawkopen.com/en/faq/integrations#what-a-crm-contact-shows)

Checked: 2026-11-11

### How does email sync work in the HawkOpen CRM?
<a id="crm-email-sync"></a>

URL: https://hawkopen.com/en/faq/integrations#crm-email-sync

There is no automatic two-way sync, neither with other CRMs nor with your mail contacts. Inside HawkOpen, a contact’s history shows by itself the emails your team sent to that address through HawkOpen; other emails from your connected mailboxes you link yourself, and on Business, webhooks can send tracking events to other tools.

To bring contacts in, use CSV import. To keep another CRM up to date, pass HawkOpen webhooks on through an automation tool such as Zapier; HawkOpen has no ready-made connection to any CRM.

Related questions: [Does HawkOpen integrate with my CRM, such as Pipedrive?](https://hawkopen.com/en/faq/integrations/does-hawkopen-integrate-with-a-crm), [Can I import and export CRM contacts as a CSV file, for example from Gmail or Outlook?](https://hawkopen.com/en/faq/integrations#crm-import-and-export-csv)

Checked: 2026-11-12

### How do I erase a CRM contact when someone asks me to delete their data?
<a id="erase-a-crm-contact"></a>

URL: https://hawkopen.com/en/faq/integrations#erase-a-crm-contact

Open the contact in the CRM and request its erasure; to prevent mistakes, you confirm by typing ERASE CONTACT. You can also mark a contact as opted out instead of erasing it.

Recipients of your tracked emails also have their own privacy page, reached through the link in the notice at the end of each tracked email, where they can ask for their tracking data or have it erased. This answer describes what the product does; whether and how you must respond to a request depends on the rules that apply to you.

Where rules that require consent apply, tracking may start only after that consent has been obtained. The link in the message lets the recipient withdraw consent later.

Related questions: [Is the HawkOpen CRM GDPR compliant?](https://hawkopen.com/en/faq/integrations#is-the-hawkopen-crm-gdpr-compliant), [What does a contact show in the HawkOpen CRM, and is there an activity timeline?](https://hawkopen.com/en/faq/integrations#what-a-crm-contact-shows)

Checked: 2026-11-12

### Is the HawkOpen CRM GDPR compliant?
<a id="is-the-hawkopen-crm-gdpr-compliant"></a>

URL: https://hawkopen.com/en/faq/integrations#is-the-hawkopen-crm-gdpr-compliant

> This information is general and concerns the features of HawkOpen (TriStiX S.L.). It is not individual legal advice or an assessment of whether a specific campaign or document complies with the law. Customers make their own decisions about their activities and, where needed, consult a qualified specialist. This does not limit any rights they have under mandatory law. Last reviewed: November 11, 2026.

We do not make that promise: whether you meet the GDPR depends on how you collect and use your contacts, not only on the tool. HawkOpen gives you tools for it: erasing a contact, marking it as opted out, and exporting your records.

Two facts to weigh: HawkOpen has not yet published where its data is hosted, and its independent security assessment is still pending. This is a description of the product, not legal advice.

Related questions: [How do I erase a CRM contact when someone asks me to delete their data?](https://hawkopen.com/en/faq/integrations#erase-a-crm-contact)

Checked: 2026-11-11

### Can I attach voice notes to contacts in the HawkOpen CRM?
<a id="crm-voice-notes"></a>

URL: https://hawkopen.com/en/faq/integrations#crm-voice-notes

Yes, as text. You dictate the note with your device’s own dictation, and HawkOpen receives and keeps only the text, never a recording. A voice note starts as a draft you can correct, and once approved it appears as a note in the history of the contact or opportunity.

HawkOpen does not accept audio files and does not transcribe recordings itself. Written notes work as before: they stay on the record and appear in its history, newest first, for everyone on your team who works in the CRM.

Related questions: [Can I add notes, tasks and deals with stages in the HawkOpen CRM?](https://hawkopen.com/en/faq/integrations#crm-notes-tasks-and-deals)

Checked: 2026-11-12

### What is a CRM, and what does CRM email mean?
<a id="what-is-a-crm"></a>

URL: https://hawkopen.com/en/faq/integrations#what-is-a-crm

CRM stands for customer relationship management: one place for your companies, contacts, sales opportunities and tasks. “CRM email” usually means emails that are saved on the contact they belong to, so the whole team sees the history.

HawkOpen includes a simple CRM in the Pro and Business plans (on Free it is a paid add-on with a trial), with companies, contacts, opportunities, tasks and notes, and you can link emails from your connected mailboxes to a contact. It is not a full sales suite.

Related questions: [Does HawkOpen have a CRM for Gmail or Outlook, and is it free?](https://hawkopen.com/en/faq/integrations/does-hawkopen-have-a-crm-for-gmail-or-outlook), [What does a contact show in the HawkOpen CRM, and is there an activity timeline?](https://hawkopen.com/en/faq/integrations#what-a-crm-contact-shows)

Checked: 2026-11-12

### Can clients book a meeting from a HawkOpen proposal, or can I add a booking link such as Calendly?
<a id="book-a-meeting-from-a-proposal-or-email"></a>

URL: https://hawkopen.com/en/faq/integrations#book-a-meeting-from-a-proposal-or-email

A proposal link offers the client a “request a meeting” action that lets you know, but HawkOpen does not connect to any calendar. In an email you can add any https booking link, for example Calendly, and where links are tracked, HawkOpen counts its clicks like any other link.

Proposal links are a preview: they work only once the external file scanning is switched on, because the server accepts files only after that check. The meeting request does not book a slot; you agree on the time with the client yourself.

A booking link in an email keeps its destination exactly as you wrote it, so the client lands on your booking page. Only https links are tracked, and a click from a security scanner is labelled as such.

Related questions: [Do HawkOpen tracked links work with Google Analytics and UTM parameters?](https://hawkopen.com/en/faq/integrations/track-email-link-clicks-in-google-analytics), [How do I know whether a client read my proposal or quote?](https://hawkopen.com/en/faq/use-cases/did-the-client-read-my-proposal)

Checked: 2026-11-12

### Is HawkOpen in the Google Workspace Marketplace or Microsoft AppSource?
<a id="workspace-marketplace-or-appsource"></a>

URL: https://hawkopen.com/en/faq/integrations#workspace-marketplace-or-appsource

No. HawkOpen is not listed in the Google Workspace Marketplace or Microsoft AppSource and has no Gmail add-on or Outlook add-in. It works through a browser extension for Chrome and Firefox and through the HawkOpen dashboard.

The extension works in Gmail, Outlook on the web and Yahoo Mail; the Chrome build is also meant for Edge, Brave and Opera, and the Firefox build needs version 109 or later.

Instead of the extension, you can connect a mailbox in the dashboard with your Google or Microsoft sign-in, or any other mailbox through IMAP/SMTP, and send tracked emails from there. If you write mostly in the Outlook desktop app, a tool with an Outlook add-in will be more convenient.

Related questions: [Does HawkOpen integrate with my CRM, such as Pipedrive?](https://hawkopen.com/en/faq/integrations/does-hawkopen-integrate-with-a-crm), [Does HawkOpen offer a public REST API and API keys?](https://hawkopen.com/en/faq/integrations#does-hawkopen-have-a-public-api)

Checked: 2026-11-11

### How do I connect HawkOpen to Zapier, Make, n8n or Power Automate?
<a id="connect-hawkopen-to-zapier-make-n8n"></a>

URL: https://hawkopen.com/en/faq/integrations#connect-hawkopen-to-zapier-make-n8n

Through webhooks on the Business plan. HawkOpen has no ready-made app in Zapier or Make; instead you create a webhook trigger there, such as a Zapier Catch Hook, and paste its address into HawkOpen.

Steps: create the webhook trigger in your automation tool and copy its https address; in the HawkOpen dashboard add a webhook with that address and choose the events, for example opens, clicks or replies; send a test; then build the next steps in your tool. The same works in Make, n8n and Power Automate.

For Microsoft Teams there is a simpler way on Business: paste the https address of a Teams workflow, for example one made in Power Automate, into your settings and HawkOpen posts its alerts there.

Related questions: [Which events can HawkOpen webhooks send, and is an unsubscribe reported?](https://hawkopen.com/en/faq/integrations#which-events-do-webhooks-send), [Can I send HawkOpen events to Google Sheets, Airtable, Notion or Slack?](https://hawkopen.com/en/faq/integrations#send-events-to-sheets-notion-slack), [Does HawkOpen integrate with my CRM, such as Pipedrive?](https://hawkopen.com/en/faq/integrations/does-hawkopen-integrate-with-a-crm)

Checked: 2026-11-11

### Can I send HawkOpen events to Google Sheets, Airtable, Notion or Slack?
<a id="send-events-to-sheets-notion-slack"></a>

URL: https://hawkopen.com/en/faq/integrations#send-events-to-sheets-notion-slack

Not directly: HawkOpen has no built-in connection to these tools. On the Business plan you can send its webhooks to an automation tool such as Zapier, Make or n8n, which then adds a row to a sheet, a Notion page or a Slack message.

Example: create a Zapier Catch Hook, add its address as a webhook in HawkOpen with the reply and click events, and add a Google Sheets step that writes the recipient, the event and the time. Keep in mind that an open is a signal, not proof of reading, and that each event carries HawkOpen’s label.

Related questions: [How do I connect HawkOpen to Zapier, Make, n8n or Power Automate?](https://hawkopen.com/en/faq/integrations#connect-hawkopen-to-zapier-make-n8n), [Which events can HawkOpen webhooks send, and is an unsubscribe reported?](https://hawkopen.com/en/faq/integrations#which-events-do-webhooks-send)

Checked: 2026-11-11

### Does HawkOpen offer a public REST API and API keys?
<a id="does-hawkopen-have-a-public-api"></a>

URL: https://hawkopen.com/en/faq/integrations#does-hawkopen-have-a-public-api

No. HawkOpen has no public API and does not issue API keys. To get data out, use signed webhooks on the Business plan, which send events as they happen, and CSV export from the CRM.

Webhooks only go one way, from HawkOpen to you: you cannot create messages or contacts in HawkOpen through them. If your work depends on a full API, choose a tool that publishes one.

Related questions: [Which events can HawkOpen webhooks send, and is an unsubscribe reported?](https://hawkopen.com/en/faq/integrations#which-events-do-webhooks-send), [Can Zapier send an automated tracked email through HawkOpen?](https://hawkopen.com/en/faq/integrations#zapier-send-tracked-email)

Checked: 2026-11-11

### Which events can HawkOpen webhooks send, and is an unsubscribe reported?
<a id="which-events-do-webhooks-send"></a>

URL: https://hawkopen.com/en/faq/integrations#which-events-do-webhooks-send

Ten message events: email sent, open signal, click, reply, bounce, unsubscribe, reminder due, report ready, alert triggered and a recipient’s refusal of tracking, plus five CRM events for new or changed companies and contacts and a contact import. Yes, an unsubscribe is reported as contact.unsubscribed. Webhooks are part of the Business plan.

The technical names are message.sent, message.open_signal, message.click, message.reply, message.bounce, contact.unsubscribed, reminder.due, report.generated, alert.triggered and recipient.tracking_declined, and for the CRM crm.account.created, crm.account.updated, crm.contact.created, crm.contact.updated and crm.contacts.imported. For each web address you choose which of them it receives, and a test button sends a sample delivery.

An open is called a signal on purpose: it can come from a person, a mail-provider proxy or a scanner, so treat it as an estimate. Every delivery is signed with a secret that only you and HawkOpen know.

Related questions: [What does a HawkOpen webhook delivery contain?](https://hawkopen.com/en/faq/integrations#webhook-payload-contents), [How do HawkOpen webhook retries and timeouts work?](https://hawkopen.com/en/faq/integrations#webhook-retries-and-timeouts), [How do I connect HawkOpen to Zapier, Make, n8n or Power Automate?](https://hawkopen.com/en/faq/integrations#connect-hawkopen-to-zapier-make-n8n)

Checked: 2026-11-12

### Can I connect HawkOpen to Claude, ChatGPT or other AI apps through MCP?
<a id="connect-hawkopen-to-ai-apps-mcp"></a>

URL: https://hawkopen.com/en/faq/integrations#connect-hawkopen-to-ai-apps-mcp

Not today. HawkOpen does not have an MCP connection or any other direct link to AI apps. The way to get its events into other tools is webhooks on the Business plan.

If your automation tool can pass data to an AI app, you can route HawkOpen webhooks through it, for example to summarise replies. Remember that the tracking data concerns your recipients, so think about what you send to a third-party AI service.

Related questions: [Does HawkOpen offer a public REST API and API keys?](https://hawkopen.com/en/faq/integrations#does-hawkopen-have-a-public-api), [How do I connect HawkOpen to Zapier, Make, n8n or Power Automate?](https://hawkopen.com/en/faq/integrations#connect-hawkopen-to-zapier-make-n8n)

Checked: 2026-11-11

### What does a HawkOpen webhook delivery contain?
<a id="webhook-payload-contents"></a>

URL: https://hawkopen.com/en/faq/integrations#webhook-payload-contents

An HTTPS POST with a JSON body that holds the event’s own fields plus id, event and occurred_at. Headers carry the signature (X-HawkOpen-Signature), the delivery id, the event name and a creation and expiry time.

The signature is an HMAC SHA-256 made with the secret of your webhook. Reject a delivery after its expiry time, which is five minutes after it was created, and use the delivery id to ignore duplicates: a retry keeps the same id.

Related questions: [Which events can HawkOpen webhooks send, and is an unsubscribe reported?](https://hawkopen.com/en/faq/integrations#which-events-do-webhooks-send), [How do HawkOpen webhook retries and timeouts work?](https://hawkopen.com/en/faq/integrations#webhook-retries-and-timeouts)

Checked: 2026-11-11

### How do HawkOpen webhook retries and timeouts work?
<a id="webhook-retries-and-timeouts"></a>

URL: https://hawkopen.com/en/faq/integrations#webhook-retries-and-timeouts

Each attempt may take up to 15 seconds, and a delivery gets at most 4 attempts. HawkOpen retries only after a network error, a 5xx response or a 429; any other 4xx response ends the delivery at once.

The pauses between attempts grow and are partly random, so retries do not arrive all at once. Reply with a 2xx status as soon as you have stored the delivery and do slow work afterwards; a retry keeps the same delivery id, so you can ignore duplicates.

Related questions: [What does a HawkOpen webhook delivery contain?](https://hawkopen.com/en/faq/integrations#webhook-payload-contents), [Which web addresses can a HawkOpen webhook point to, and can it be localhost or a private address?](https://hawkopen.com/en/faq/integrations#webhook-address-rules)

Checked: 2026-11-11

### Which web addresses can a HawkOpen webhook point to, and can it be localhost or a private address?
<a id="webhook-address-rules"></a>

URL: https://hawkopen.com/en/faq/integrations#webhook-address-rules

The address must use https and port 443, 8443 or a port above 1024, and it must lead to a public server. Localhost and private or reserved networks, such as 10.x or 192.168.x addresses, are refused.

This protects your internal network and HawkOpen’s servers. For testing on your own computer, use a tunnelling service that gives you a public https address, or the test button on the webhook.

Related questions: [How do HawkOpen webhook retries and timeouts work?](https://hawkopen.com/en/faq/integrations#webhook-retries-and-timeouts), [How do I connect HawkOpen to Zapier, Make, n8n or Power Automate?](https://hawkopen.com/en/faq/integrations#connect-hawkopen-to-zapier-make-n8n)

Checked: 2026-11-11

### Can Zapier send an automated tracked email through HawkOpen?
<a id="zapier-send-tracked-email"></a>

URL: https://hawkopen.com/en/faq/integrations#zapier-send-tracked-email

No. HawkOpen does not have this: its webhooks only send events out, and there is no action that lets Zapier or another tool send an email through HawkOpen.

To send tracked emails, use the browser extension, the HawkOpen dashboard or a campaign from your own mailbox (up to 50 recipients on Free and 500 on Pro and Business). A copy is tracked only where your company has switched tracking on and the recipient has consented.

Related questions: [How do I connect HawkOpen to Zapier, Make, n8n or Power Automate?](https://hawkopen.com/en/faq/integrations#connect-hawkopen-to-zapier-make-n8n), [Does HawkOpen offer a public REST API and API keys?](https://hawkopen.com/en/faq/integrations#does-hawkopen-have-a-public-api)

Checked: 2026-11-12
