Op 27/02/2019 om 13:30 schreef Matthias Petermann via dovecot:
Hello,
we face an issue with the vacation extension of pigeonhole. Our upstream mail server (from which we pull our E-Mails with POP3) uses SPF and performs a SRS re-write of the Return Path. Once the mail is processed via our local postfix, it is delivered via dovecot deliver (using the lda). When the recipient has a vacation rule enabled in sieve, the out-of-office note cannot be sent, as pigeonhole tries to use the Return-Path (which is not accepted as sender by the mail server).
We are using the following dovecot / pigeonhole versions:
dovecot-2.3.2.1 dovecot-pigeonhole-0.5.2
As of my understanding, the problem was addressed in pigeonhole version v0.4.21 by introducing the sieve_vacation_to_header_ignore_envelope setting. Anyway - even when this is set to "yes" pigeonhole still uses the Return-Path instead of the "From:" header which I had expected:
Feb 27 13:22:26 mail dovecot: lda(customer)<48383><3o+yOQGBdlz/vAAAZU03Dg>: Error: sieve: msgid=<e081d2ba-21d5-c32b-3750-69fe0c8a76d2@petermann-it.de>: failed to send vacation response to SRS0=gwGXg6ad=RC=petermann-it.de=matthias@example.com: <Sendmail program returned error> (temporary error)
Are my expectations wrong or did I miss some precondition?
That setting is only about the composition of the "To:" header for the outgoing vacation message (it's in the name). It has nothing to do with the RCPT TO envelope address used for that message. Why exactly do the mail servers reject the vacation message (I am not too familiar with SRS).
Regards,
Stephan.
Best regards, Matthias
- This is the email which I use to test (I replaced the actual domain with example.com):
------>8------------------------------------------------------------------------------
Return-Path: <SRS0=gwGXg6ad=RC=petermann-it.de=matthias@example.com> Delivered-To: customer[[@example.com]] To: Customer <customer@example.com> From: Matthias Petermann <matthias@petermann-it.de> Subject: Test Message-ID: <e081d2ba-21d5-c32b-3750-69fe0c8a76d2@petermann-it.de> Date: Wed, 27 Feb 2019 05:21:45 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.5.1
Test message ------8<------------------------------------------------------------------------------
- The related excerpt of the configuration:
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mail /usr/local/etc/dovecot/conf.d >doveconf | grep -A 10 -B 10 to_header_ignore_envelope result_failure = continue result_internalfail = continue result_success = return-ok skip = never username_filter = } plugin { acl = vfile acl_shared_dict = file:/var/lib/dovecot/shared-mailboxes sieve = file:/srv/vmail/%u/sieve;active=/srv/vmail/%u/active.sieve sieve_vacation_to_header_ignore_envelope = yes } pop3_client_workarounds = pop3_delete_type = default pop3_deleted_flag = pop3_enable_last = no pop3_fast_size_lookups = no pop3_lock_session = no pop3_logout_format = top=%t/%p, retr=%r/%b, del=%d/%m, size=%s pop3_no_flag_updates = no pop3_reuse_xuidl = no ------8<------------------------------------------------------------------------------