Overview
FiniteMail is a full IMAP webmail client for business email that runs on your own Postfix servers — with threading, filters, an address book and team broadcasts, plus native desktop and mobile apps.
Features
Your own servers
IMAP webmail sending through your Postfix — no third-party relay.
Reply, reply-all & forward
Forwards carry the original attachments; threading keeps replies together.
Search operators
from:, subject:, is:unread, has:attachment and more.
Server-side filters
Auto-label, star, archive or move incoming mail by rule.
Address book
Contacts autocomplete in the To field everywhere.
Broadcast & vault
Announce to all staff or a segment; encrypted document vault.
Getting started
Open mail.finiteskills.com and sign in. Set your signature and display name once in Settings — they are added to every new message.
Compose, reply & forward
Compose with a rich editor (attachments, tables, images, emoji). Open any message to Reply, Reply all or Forward — forwards carry the original attachments. Mail leaves through your own server.
Organize & find mail
Sort with folders and labels, star what matters, and use conversation threading. Search supports operators like from:, subject:, is:unread and has:attachment. Swipe to archive or delete on mobile.
Filters & address book
Create server-side filters (Settings → Filters) to auto-label, star, archive or move incoming mail. Build an address book once and it autocompletes in the To field everywhere.
Broadcast & security
Broadcast an announcement to all employees or a segment. Sensitive files can go into the encrypted document vault. Turn on MFA in FiniteAccounts to protect the mailbox.
Tutorials
1Set up your signature and send mail
- Go to Settings and add your signature and display name.
- Click Compose; the signature is added automatically.
- Add recipients (they autocomplete from your address book), a subject and body.
- Attach files if needed and Send — mail leaves via your own server.
2Create a filter to auto-organize mail
- Open Settings → Filters → New.
- Add a condition, e.g. from contains billing@.
- Choose an action: label, star, archive or move.
- Save — the rule runs on new mail (use Run now to apply to the inbox).