On 24.03.2018 11:32, Sven Wagner wrote:
On 23.03.2018 12:02, Marco Dickert wrote:

Zeige mal den Inhalt der Datei
/etc/postfix/header_checks. Zeige außerdem mal die Mail-Log-Einträge, wenn du
eine Mail vom System selbst schickst (also wenn der Fehler auftritt).
Hier der Auszug aus Mail-Log:

Mar 24 11:15:46 mail postfix/submission/smtpd[11182]: connect from dslb-088-067-160-015.088.067.pools.vodafone-ip.de[88.67.160.15] Mar 24 11:15:47 mail postfix/submission/smtpd[11182]: 5FC3B607A4: client=dslb-088-067-160-015.088.067.pools.vodafone-ip.de[88.67.160.15], sasl_method=PLAIN, [email protected] Mar 24 11:15:47 mail postfix/cleanup[11185]: 5FC3B607A4: message-id=<[email protected]> Mar 24 11:15:47 mail postfix/qmgr[6582]: 5FC3B607A4: from=<[email protected]>, size=552, nrcpt=6 (queue active)
Mar 24 11:15:47 mail dovecot: lmtp(11188): Connect from local
Mar 24 11:15:47 mail dovecot: lmtp([email protected]): CIypIFMltlq0KwAAqa3BHQ: sieve: msgid=<[email protected]>: stored mail into mailbox 'INBOX' Mar 24 11:15:47 mail postfix/lmtp[11187]: 5FC3B607A4: to=<[email protected]>, orig_to=<[email protected]>, relay=mail.domain.tld[private/dovecot-lmtp], delay=0.22, delays=0.19/0.01/0.01/0.02, dsn=2.0.0, status=sent (250 2.0.0 <[email protected]> CIypIFMltlq0KwAAqa3BHQ Saved) Mar 24 11:15:47 mail dovecot: lmtp([email protected]): CIypIFMltlq0KwAAqa3BHQ:2: sieve: msgid=<[email protected]>: stored mail into mailbox 'INBOX' Mar 24 11:15:47 mail postfix/lmtp[11187]: 5FC3B607A4: to=<[email protected]>, orig_to=<[email protected]>, relay=mail.domain.tld[private/dovecot-lmtp], delay=0.23, delays=0.19/0.01/0.01/0.02, dsn=2.0.0, status=sent (250 2.0.0 <[email protected]> CIypIFMltlq0KwAAqa3BHQ:2 Saved) Mar 24 11:15:47 mail dovecot: lmtp(11188): Disconnect from local: Successful quit Mar 24 11:15:47 mail postfix/submission/smtpd[11182]: disconnect from dslb-088-067-160-015.088.067.pools.vodafone-ip.de[88.67.160.15] ehlo=2 starttls=1 auth=1 mail=1 rcpt=1 data=1 quit=1 commands=8 Mar 24 11:15:47 mail dovecot: imap([email protected]): Connection closed in=1017 out=38899 Mar 24 11:15:48 mail postfix/smtp[11189]: 5FC3B607A4: to=<[email protected]>, orig_to=<[email protected]>, relay=xxxxxxxx:25, delay=0.84, delays=0.19/0.04/0.26/0.36, dsn=2.0.0, status=sent (250 2.0.0 Ok: queued as 8DA4116C0AF) Mar 24 11:15:48 mail postfix/smtp[11186]: 5FC3B607A4: to=<[email protected]>, orig_to=<[email protected]>, relay=gmail-smtp-in.l.google.com[2a00:1450:400c:c06::1a]:25, delay=1.4, delays=0.19/0.02/0.68/0.49, dsn=2.0.0, status=sent (250 2.0.0 OK 1521886553 u69si8352098wrc.186 - gsmtp) Mar 24 11:15:48 mail postfix/smtp[11186]: 5FC3B607A4: to=<[email protected]>, orig_to=<[email protected]>, relay=gmail-smtp-in.l.google.com[2a00:1450:400c:c06::1a]:25, delay=1.4, delays=0.19/0.02/0.68/0.49, dsn=2.0.0, status=sent (250 2.0.0 OK 1521886553 u69si8352098wrc.186 - gsmtp) Mar 24 11:15:48 mail postfix/smtp[11186]: 5FC3B607A4: to=<[email protected]>, orig_to=<[email protected]>, relay=gmail-smtp-in.l.google.com[2a00:1450:400c:c06::1a]:25, delay=1.4, delays=0.19/0.02/0.68/0.49, dsn=2.0.0, status=sent (250 2.0.0 OK 1521886553 u69si8352098wrc.186 - gsmtp)
Mar 24 11:15:48 mail postfix/qmgr[6582]: 5FC3B607A4: removed
Mar 24 11:15:55 mail dovecot: imap-login: Login: user=<[email protected]>, method=PLAIN, rip=88.67.160.15, lip=93.90.178.64, mpid=11192, TLS, session=<N5V/0yVoSoRYQ6AP>

Domain1,2 und 3 liegen auf dem  selben Server. Und hier noch die komplette /etx/postfix/header_checks

# /etc/postfix/header_checks
# poor man's mailing list
/^To: .*[email protected]/ PREPEND Reply-To: [email protected]

Hier noch der Auszug aus dem mail.log, wenn es funktioniert, also wenn die Mail von einem anderen Server kommt.

Mar 26 22:24:07 mail postfix/smtpd[23829]: connect from mail-qk0-x229.google.com
[2607:f8b0:400d:c09::229]
Mar 26 22:24:08 mail postfix/smtpd[23829]: 04AD960C4D: client=mail-qk0-x229.goog
le.com[2607:f8b0:400d:c09::229]
Mar 26 22:24:08 mail postfix/cleanup[23832]: 04AD960C4D: message-id=<CAHAerZxh2k
[email protected]>
Mar 26 22:24:08 mail postfix/cleanup[23832]: 04AD960C4D: prepend: header To: Was
tel Bastel <[email protected]> from mail-qk0-x229.google.com[2607:f8b
0:400d:c09::229]; from=<[email protected]> to=<[email protected]> pro
to=ESMTP helo=<mail-qk0-x229.google.com>: Reply-To: [email protected]
Mar 26 22:24:08 mail postfix/qmgr[6582]: 04AD960C4D: from=<[email protected]>, s
ize=3142, nrcpt=6 (queue active)


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