Discussion:
Lost connection after DATA
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r***@gmail.com
2018-05-21 15:11:19 UTC
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Hello everybody,
I have big problem. Last friday, about 5:20 PM, my Postfix server stop receiving emails from allegro.pl (polish eBay :) ). There is message "lost connection after DATA" in maillog. I didn't make any changes before. It stop working just like that.
The full entries in maillog:

May 21 17:08:03 mail postfix/smtpd[43285]: connect from smtpfarm18.allegro.pl[178.21.155.7]
May 21 17:08:03 mail postfix/smtpd[43285]: Anonymous TLS connection established from smtpfarm18.allegro.pl[178.21.155.7]: TLSv1.2 with cipher RC4-SHA (112/128 bits)
May 21 17:08:03 mail postfix/smtpd[43285]: DD4A852865: client=smtpfarm18.allegro.pl[178.21.155.7]
May 21 17:08:06 mail postfix/smtpd[43246]: lost connection after DATA (476 bytes) from smtpfarm6.allegro.pl[194.0.251.101]
May 21 17:08:06 mail postfix/smtpd[43246]: disconnect from smtpfarm6.allegro.pl[194.0.251.101] ehlo=2 starttls=1 mail=1 rcpt=1 data=0/1 commands=5/6

What is going on?
r***@gmail.com
2018-05-21 15:14:20 UTC
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Post by r***@gmail.com
Hello everybody,
I have big problem. Last friday, about 5:20 PM, my Postfix server stop receiving emails from allegro.pl (polish eBay :) ). There is message "lost connection after DATA" in maillog. I didn't make any changes before. It stop working just like that.
May 21 17:08:03 mail postfix/smtpd[43285]: connect from smtpfarm18.allegro.pl[178.21.155.7]
May 21 17:08:03 mail postfix/smtpd[43285]: Anonymous TLS connection established from smtpfarm18.allegro.pl[178.21.155.7]: TLSv1.2 with cipher RC4-SHA (112/128 bits)
May 21 17:08:03 mail postfix/smtpd[43285]: DD4A852865: client=smtpfarm18.allegro.pl[178.21.155.7]
May 21 17:08:06 mail postfix/smtpd[43246]: lost connection after DATA (476 bytes) from smtpfarm6.allegro.pl[194.0.251.101]
May 21 17:08:06 mail postfix/smtpd[43246]: disconnect from smtpfarm6.allegro.pl[194.0.251.101] ehlo=2 starttls=1 mail=1 rcpt=1 data=0/1 commands=5/6
What is going on?
A few informations:
1. I tried change MTU. Doesn't work.
2. Also doesn't work disbale spamlists.
3. Firewall configuration is OK.

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