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Autoresponders

Panelica 1.0.375 Verified 2026-07-23 Email

An autoresponder answers incoming mail automatically: out-of-office notices, "we received your request" acknowledgements, or a heads-up that an address has moved. In Panelica each mailbox can carry one autoresponder, toggled on and off without losing its text.

Panel locationEmail → Autorespondershttps://YOUR-SERVER-IP:8443/email/autoresponders

Setting one up

Pick the email account (one autoresponder per account; the account cannot be changed afterwards), write the subject and message, and choose plain text or HTML. The reply frequency controls how often the same sender can receive the reply, and two safety options ship enabled by default and are best left alone: not replying to detected spam, and not replying to mailing list traffic.

Behind the scenes: the autoresponder compiles into a real Dovecot Sieve vacation script in the mailbox's own mail directory, pre-compiled with sievec and owned by the account's Linux user. The generated script checks X-Spam-Status and stops for spam, checks List-Id, List-Unsubscribe and bulk Precedence headers and stops for list mail, and uses Sieve's vacation extension to track who has already been answered. Because Sieve runs at delivery inside Dovecot, replies work even when the panel itself is down. Disabling keeps the script on disk and just unlinks it, so re-enabling is instant; deleting removes it entirely.
Frequency, precisely: Sieve's vacation tracking counts in whole days, so the panel converts your frequency to days with a minimum of one. "Every 24 hours" means each sender gets at most one automatic reply per day, however many messages they send. This is what stops two autoresponders from ping-ponging replies at each other forever.

Managing autoresponders

The table shows the account, subject, message type, frequency and a status badge that doubles as a pause/activate toggle. Edit changes everything but the account. Delete confirms first, then removes both the database record and the Sieve script from disk.

The summary cards count total, active and paused responders across your accounts.

Access

Behind the email license feature and the local mail requirement, with ownership checked per account through the roles and permissions chain: users manage responders on their own mailboxes, resellers on their customers', admins on their chain, ROOT on all. The same operations exist on the External API.

Panelica Documentation · Written and verified against the live panel. · Last verified 2026-07-23 on Panelica 1.0.375