Sender address triggers FILTER smtp-amavis

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Problem:

What does "Sender address triggers FILTER smtp-amavis:[127.0.0.1]:10026" mean? Is it harmless?

Solution:

The message 'Sender address triggers FILTER smtp-amavis:[127.0.0.1]:10026' is completely harmless and expected.

A typical log line containing this message looks like :

NOQUEUE: filter: RCPT from external.domain.com[x.x.x.x]: <user@domain.com>: Sender address triggers FILTER smtp-amavis:[127.0.0.1]:10026; from=
<user@domain.com> to=<user@example.com> proto=ESMTP helo=<[x.x.x.x]>

A breakdown of the log line :

(Note that this line is logged even before the complete message has been transmitted.)

NOQUEUE:

Postfix hasn't assigned a queue-id to this message as of yet.

RCPT from external.domain.com:

The recipient domain's IP. Note the 'RCPT' -> This log line comes up immediately after RCPT, and before DATA.

Sender address triggers FILTER smtp-amavis:[127.0.0.1]:10026:

This email will be filtered through amavis. By default all sender addresses will be triggered.

proto=ESMTP:

ESMTP will be used

helo=<[x.x.x.x]>:

The helo was sent from the specified IP.

"Shashank Tewari"

<stewari@zimbra.com>