I have a problem with receiving mail from yandex (large mail service).
May 21 13:30:09 mx postfix/smtpd[77115]: timeout after DATA (47440 bytes) from forward11.mail.yandex.net[95.108.130.93] May 21 13:31:56 mx postfix/smtpd[76924]: lost connection after DATA (33439 bytes) from forward3.mail.yandex.net[77.88.46.8] May 21 13:32:39 mx postfix/smtpd[77207]: lost connection after DATA (75160 bytes) from forward14.mail.yandex.net[95.108.130.92] I have no problem with receiving mail from other servers. I have no problem when sending mail to any servers including yandex. At different location I have another postfix mail server that receiving mail from yandex. I tried to decrease MTU size to 1000. Also I tried switch to other ISP. With no result in both cases. Postfix 2.7.0, FreeBSD 7.1-RELEASE Attached tcpdump files: ts-dump.cap - from my postfix server ya-dump.cap - from one of the yandex servers -- Alexander Moisseev
ts-dump.cap
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ya-dump.cap
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