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Account settings, security & privacy

Email delivery and whitelisting

Information for IT teams: how fynk sends emails and how to make sure they aren't blocked or filtered.

Written By Sebastian

Last updated About 22 hours ago

If your company's mail server filters emails strictly, emails from fynk can end up in quarantine. This article is for IT teams who want to make sure fynk emails arrive.

Available on all plans

How fynk sends emails

  • All emails are sent from the fynk.com domain.
  • Since October 2026, fynk emails are signed with DKIM and protected by DMARC. This helps mail servers recognise them as genuine.
  • Your own domain or mail server (SMTP) can't be used for sending.

Allow emails from fynk

Ask your IT team to allow emails from the domain fynk.com in your mail server or spam filter. fynk sends through AWS from changing servers, so there's no fixed list of IP addresses to allow. Use the domain and the DKIM signature instead.

If your partners don't receive signing emails, the same applies on their side.

Good to know

  • The CC recipient getting an email while the main recipient doesn't is a typical sign of filtering on the recipient's side.
  • Links in signing emails are valid for 48 hours. A new link can be requested with one click.

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