Launching today
mailcow-signature
Exclaimer-style email signatures for self-hosted mailcow
2 followers
Exclaimer-style email signatures for self-hosted mailcow
2 followers
Company-wide email signatures for mailcow, placed right below the newest reply – not after the whole quoted thread. Visual editor, 5 layouts, per-domain and per-person signatures, dark-mode aware logos. DKIM stays valid. Free & MIT-licensed.
Free
Launch Team
ClarifyThe autonomous CRM that helps you sell more
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Hi Product Hunt 👋
We run our company mail on mailcow (self-hosted, in Germany). The one thing we missed from Microsoft 365 was proper signatures: mailcow's domain-wide footer always lands at the very bottom, after the entire quoted conversation.
So we built mailcow-signature: an rspamd plugin that finds the newest reply in Outlook, Gmail, Apple Mail, Thunderbird, SOGo & co. and inserts the signature right there – plus a web UI with a guided setup, ready-made layouts and a live dark-mode preview.
It runs before DKIM signing, never touches S/MIME/PGP or calendar invites, and if anything goes wrong the mail is sent unchanged. One-line installer, dry-run mode included.
Would love your feedback – especially from anyone running mailcow in production!