Hello,
i have problem cannot receive emails from some domains i don't know how many domain , but daily receiving complain from users cannot able to receive email from domain. today i check the smtpreceive logs i found some issue below please check it and advise me to avoid this problem:
2016-03-01T21:27:05.942Z,mailserver\Client,08D2F809801F858F,33,173.16.100.200:25,74.125.82.46:37288,<,MAIL FROM:<smshareef@innpartner.net> SIZE=426374,
2016-03-01T21:27:05.942Z,mailserver\Client,08D2F809801F858F,34,173.16.100.200:25,74.125.82.46:37288,*,08D2F809801F858F;2016-03-01T21:27:04.710Z;1,receiving message
2016-03-01T21:27:05.942Z,mailserver\Client,08D2F809801F858F,35,173.16.100.200:25,74.125.82.46:37288,>,250 2.1.0 Sender OK,
2016-03-01T21:27:05.973Z,mailserver\Client,08D2F809801F8590,33,173.16.100.200:25,74.125.82.48:38757,<,MAIL FROM:<smshareef@innpartner.net> SIZE=426369,
2016-03-01T21:27:05.973Z,mailserver\Client,08D2F809801F8590,34,173.16.100.200:25,74.125.82.48:38757,*,08D2F809801F8590;2016-03-01T21:27:04.710Z;1,receiving message
2016-03-01T21:27:05.973Z,mailserver\Client,08D2F809801F8590,35,173.16.100.200:25,74.125.82.48:38757,>,250 2.1.0 Sender OK,
2016-03-01T21:27:06.161Z,mailserver\Client,08D2F809801F858F,36,173.16.100.200:25,74.125.82.46:37288,<,RCPT TO:<m.amit@mydomain.com>,
2016-03-01T21:27:06.161Z,mailserver\Client,08D2F809801F858F,37,173.16.100.200:25,74.125.82.46:37288,>,250 2.1.5 Recipient OK,
2016-03-01T21:27:06.192Z,mailserver\Client,08D2F809801F8590,36,173.16.100.200:25,74.125.82.48:38757,<,RCPT TO:<t.orouk@mydomain.com>,
2016-03-01T21:27:06.192Z,mailserver\Client,08D2F809801F8590,37,173.16.100.200:25,74.125.82.48:38757,>,250 2.1.5 Recipient OK,
2016-03-01T21:27:06.379Z,mailserver\Client,08D2F809801F858F,38,173.16.100.200:25,74.125.82.46:37288,<,DATA,
2016-03-01T21:27:06.379Z,mailserver\Client,08D2F809801F858F,39,173.16.100.200:25,74.125.82.46:37288,>,354 Start mail input; end with <CRLF>.<CRLF>,
2016-03-01T21:27:06.410Z,mailserver\Client,08D2F809801F8590,38,173.16.100.200:25,74.125.82.48:38757,<,DATA,
2016-03-01T21:27:06.410Z,mailserver\Client,08D2F809801F8590,39,173.16.100.200:25,74.125.82.48:38757,>,354 Start mail input; end with <CRLF>.<CRLF>,
2016-03-01T21:27:08.657Z,mailserver\Client,08D2F809801F858F,40,173.16.100.200:25,74.125.82.46:37288,*,Tarpit for '0.00:00:01.185' due to 'DelayedAck',Delivered
2016-03-01T21:27:08.657Z,mailserver\Client,08D2F809801F858F,41,173.16.100.200:25,74.125.82.46:37288,>,250 2.6.0 <007e01d17400$6663e5e0$332bb1a0$@net> [InternalId=85985] Queued mail for delivery,
2016-03-01T21:27:09.000Z,mailserver\Client,08D2F809801F858F,42,173.16.100.200:25,74.125.82.46:37288,<,QUIT,
2016-03-01T21:27:09.000Z,mailserver\Client,08D2F809801F858F,43,173.16.100.200:25,74.125.82.46:37288,>,221 2.0.0 Service closing transmission channel,
2016-03-01T21:27:09.000Z,mailserver\Client,08D2F809801F858F,44,173.16.100.200:25,74.125.82.46:37288,-,,Local
2016-03-01T21:27:11.153Z,mailserver\Client,08D2F809801F8590,40,173.16.100.200:25,74.125.82.48:38757,*,Tarpit for '0.00:00:03.681' due to 'DelayedAck',Delivered
2016-03-01T21:27:11.153Z,mailserver\Client,08D2F809801F8590,41,173.16.100.200:25,74.125.82.48:38757,>,250 2.6.0 <007e01d17400$6663e5e0$332bb1a0$@net> [InternalId=85984] Queued mail for delivery,
2016-03-01T21:27:11.465Z,mailserver\Client,08D2F809801F8590,42,173.16.100.200:25,74.125.82.48:38757,<,QUIT,
2016-03-01T21:27:11.465Z,mailserver\Client,08D2F809801F8590,43,173.16.100.200:25,74.125.82.48:38757,>,221 2.0.0 Service closing transmission channel,
2016-03-01T21:27:11.465Z,mailserver\Client,08D2F809801F8590,44,173.16.100.200:25,74.125.82.48:38757,-,,Local
2016-03-01T21:29:28.963Z,mailserver\Client,08D2F809801F8593,0,173.16.100.200:25,66.231.86.109:59552,+,,
2016-03-01T21:29:28.963Z,mailserver\Client,08D2F809801F8593,1,173.16.100.200:25,66.231.86.109:59552,*,SMTPSubmit SMTPAcceptAnySender SMTPAcceptAuthoritativeDomainSender AcceptRoutingHeaders,Set Session Permissions
2016-03-01T21:29:28.963Z,mailserver\Client,08D2F809801F8593,2,173.16.100.200:25,66.231.86.109:59552,>,"220 mailserver.mydomain.com Microsoft ESMTP MAIL Service ready at Wed, 2 Mar 2016 00:29:28 +0300",
2016-03-01T21:29:29.431Z,mailserver\Client,08D2F809801F8593,3,173.16.100.200:25,66.231.86.109:59552,<,EHLO mta.reedexpo-email.com,
2016-03-01T21:29:29.431Z,mailserver\Client,08D2F809801F8593,4,173.16.100.200:25,66.231.86.109:59552,>,250-mailserver.mydomain.com Hello [xx.xx.86.109],
2016-03-01T21:29:29.431Z,mailserver\Client,08D2F809801F8593,5,173.16.100.200:25,66.231.86.109:59552,>,250-SIZE,
2016-03-01T21:29:29.431Z,mailserver\Client,08D2F809801F8593,6,173.16.100.200:25,66.231.86.109:59552,>,250-PIPELINING,
2016-03-01T21:29:29.431Z,mailserver\Client,08D2F809801F8593,7,173.16.100.200:25,66.231.86.109:59552,>,250-DSN,
2016-03-01T21:29:29.431Z,mailserver\Client,08D2F809801F8593,8,173.16.100.200:25,66.231.86.109:59552,>,250-ENHANCEDSTATUSCODES,
2016-03-01T21:29:29.431Z,mailserver\Client,08D2F809801F8593,9,173.16.100.200:25,66.231.86.109:59552,>,250-STARTTLS,
2016-03-01T21:29:29.431Z,mailserver\Client,08D2F809801F8593,10,173.16.100.200:25,66.231.86.109:59552,>,250-AUTH NTLM,
2016-03-01T21:29:29.431Z,mailserver\Client,08D2F809801F8593,11,173.16.100.200:25,66.231.86.109:59552,>,250-8BITMIME,
2016-03-01T21:29:29.431Z,mailserver\Client,08D2F809801F8593,12,173.16.100.200:25,66.231.86.109:59552,>,250-BINARYMIME,
2016-03-01T21:29:29.431Z,mailserver\Client,08D2F809801F8593,13,173.16.100.200:25,66.231.86.109:59552,>,250 CHUNKING,
thanks in advance