Hello,
I am wondering if someone can point me in direction of troubleshooting
this.
For the past week we have been receiving some emails as duplicates or
more, some times up to 6 or 7 times.
These multiple copes can be received from any host (eg, skype.com,
linkedin.com, yahoo, gmail or some corporate services).
From what I can see in the logs, the remote mail server is connecting
multiple times but for what reason I am not sure
I only have one MX accessible, so it's not coming in via multiple
sources
Logs for a yahoo.fr email as an example is the following (logs have been
sanitized):
Jun 11 21:34:13 mailsrv postfix/smtpd[30440]: connect from
nm11-vm3.bullet.mail.ir2.yahoo.com[212.82.96.164]
Jun 11 21:34:13 mailsrv postfix/smtpd[30440]: setting up TLS connection
from nm11-vm3.bullet.mail.ir2.yahoo.com[212.82.96.164]
Jun 11 21:34:13 mailsrv postfix/smtpd[30488]: connect from
nm11-vm8.bullet.mail.ir2.yahoo.com[212.82.96.169]
Jun 11 21:34:14 mailsrv postfix/smtpd[30488]: setting up TLS connection
from nm11-vm8.bullet.mail.ir2.yahoo.com[212.82.96.169]
Jun 11 21:34:14 mailsrv postfix/smtpd[30440]: Anonymous TLS connection
established from nm11-vm3.bullet.mail.ir2.yahoo.com[212.82.96.164]:
TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)
Jun 11 21:34:14 mailsrv postfix/smtpd[30488]: Anonymous TLS connection
established from nm11-vm8.bullet.mail.ir2.yahoo.com[212.82.96.169]:
TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)
Jun 11 21:34:14 mailsrv postfix/smtpd[30440]: 264B6B11D:
client=nm11-vm3.bullet.mail.ir2.yahoo.com[212.82.96.164]
Jun 11 21:34:14 mailsrv postfix/cleanup[30492]: 264B6B11D:
message-id=<1402568771.40464.yahoomail...@web172301.mail.ir2.yahoo.com>
Jun 11 21:34:14 mailsrv postfix/smtpd[30488]: C49551042:
client=nm11-vm8.bullet.mail.ir2.yahoo.com[212.82.96.169]
Jun 11 21:34:15 mailsrv postfix/cleanup[30491]: C49551042:
message-id=<1402568771.40464.yahoomail...@web172301.mail.ir2.yahoo.com>
Jun 11 21:34:16 mailsrv postfix/qmgr[29330]: 264B6B11D:
from=<remote-sen...@yahoo.fr>, size=608582, nrcpt=1 (queue active)
Jun 11 21:34:16 mailsrv postfix/smtpd[30440]: disconnect from
nm11-vm3.bullet.mail.ir2.yahoo.com[212.82.96.164]
Jun 11 21:34:16 mailsrv postfix/smtpd[30500]: connect from
localhost[127.0.0.1]
Jun 11 21:34:16 mailsrv postfix/smtpd[30500]: D12E6C045:
client=localhost[127.0.0.1]
Jun 11 21:34:16 mailsrv postfix/cleanup[30493]: D12E6C045:
message-id=<1402568771.40464.yahoomail...@web172301.mail.ir2.yahoo.com>
Jun 11 21:34:16 mailsrv postfix/qmgr[29330]: D12E6C045:
from=<remote-sen...@yahoo.fr>, size=609073, nrcpt=1 (queue active)
Jun 11 21:34:16 mailsrv postfix/smtpd[30500]: disconnect from
localhost[127.0.0.1]
Jun 11 21:34:16 mailsrv postfix/smtp[30497]: 264B6B11D:
to=<local-recipi...@example.org>, relay=127.0.0.1[127.0.0.1]:10024,
delay=2.5, delays=2/0/0/0.51, dsn=2.6.0, status=sent (250 2.6.0 Ok,
id=30520-03, from MTA: 250 2.0.0 Ok: queued as D12E6C045)
Jun 11 21:34:16 mailsrv postfix/qmgr[29330]: 264B6B11D: removed
Jun 11 21:34:16 mailsrv postfix/qmgr[29330]: C49551042:
from=<remote-sen...@yahoo.fr>, size=608577, nrcpt=1 (queue active)
Jun 11 21:34:17 mailsrv postfix/smtp[30502]: D12E6C045:
to=<local-recipi...@example.org>, relay=10.10.2.2[10.10.2.2]:25,
delay=0.2, delays=0.07/0/0/0.12, dsn=2.0.0, status=sent (250 2.0.0 Ok:
queued as E72551220061)
Jun 11 21:34:17 mailsrv postfix/qmgr[29330]: D12E6C045: removed
Jun 11 21:34:17 mailsrv postfix/smtpd[30488]: disconnect from
nm11-vm8.bullet.mail.ir2.yahoo.com[212.82.96.169]
Jun 11 21:34:17 mailsrv postfix/smtpd[30500]: connect from
localhost[127.0.0.1]
Jun 11 21:34:17 mailsrv postfix/smtpd[30500]: 32882C01D:
client=localhost[127.0.0.1]
Jun 11 21:34:17 mailsrv postfix/cleanup[30492]: 32882C01D:
message-id=<1402568771.40464.yahoomail...@web172301.mail.ir2.yahoo.com>
Jun 11 21:34:17 mailsrv postfix/qmgr[29330]: 32882C01D:
from=<remote-sen...@yahoo.fr>, size=609068, nrcpt=1 (queue active)
Jun 11 21:34:17 mailsrv postfix/smtpd[30500]: disconnect from
localhost[127.0.0.1]
Jun 11 21:34:17 mailsrv postfix/smtp[30494]: C49551042:
to=<local-recipi...@example.org>,
orig_to=<local-recipient-al...@example.org>,
relay=127.0.0.1[127.0.0.1]:10024, delay=2.6, delays=2.3/0/0/0.3,
dsn=2.6.0, status=sent (250 2.6.0 Ok, id=30484-10, from MTA: 250 2.0.0
Ok: queued as 32882C01D)
Jun 11 21:34:17 mailsrv postfix/qmgr[29330]: C49551042: removed
Jun 11 21:34:17 mailsrv postfix/smtp[30507]: 32882C01D:
to=<local-recipi...@example.org>, relay=10.10.2.2[10.10.2.2]:25,
delay=0.19, delays=0.08/0/0/0.11, dsn=2.0.0, status=sent (250 2.0.0 Ok:
queued as 4978B1220071)
Jun 11 21:34:17 mailsrv postfix/qmgr[29330]: 32882C01D: removed
