Mail best practices?
Without going to a dedicated list for something like this, I'm looking for a common sense approach. Sep 3 17:55:20 XXX sendmail[155]: r83Lse37000155: rejecting commands from outmail016.ash2.facebook.com [66.220.155.150] due to pre-greeting traffic Sep 3 17:55:22 XXX sendmail[156]: r83Lsg6N000156: rejecting commands from outmail015.ash2.facebook.com [66.220.155.149] due to pre-greeting traffic Isn't this sort of thing supposed to be frowned upon still? I am not trying to name & shame here, but I figured this is a pretty big/respectable email sender. Thoughts for balancing sensible network spam management with sensible best practices that affect lots of users? Thanks in advance, Deepak
What's your greet pause set to? Ted On Tue, 3 Sep 2013, Deepak Jain wrote:
Without going to a dedicated list for something like this, I'm looking for a common sense approach.
Sep 3 17:55:20 XXX sendmail[155]: r83Lse37000155: rejecting commands from outmail016.ash2.facebook.com [66.220.155.150] due to pre-greeting traffic
Sep 3 17:55:22 XXX sendmail[156]: r83Lsg6N000156: rejecting commands from outmail015.ash2.facebook.com [66.220.155.149] due to pre-greeting traffic
Isn't this sort of thing supposed to be frowned upon still? I am not trying to name & shame here, but I figured this is a pretty big/respectable email sender.
Thoughts for balancing sensible network spam management with sensible best practices that affect lots of users?
Thanks in advance,
Deepak
hello Team Could someone please advice as some of sender are unable to send mails to my server when i check the logs i found 2013-09-05 20:31:32 SMTP connection from smtp-sender.com (senderdomain.com) [xx.xx.xx.xx] lost while reading message data (header) Regads lee
On Thu, Sep 5, 2013 at 3:48 PM, Kwas Lee <leekwas@yahoo.com> wrote:
Could someone please advice as some of sender are unable to send mails to my server when i check the logs i found
2013-09-05 20:31:32 SMTP connection from smtp-sender.com (senderdomain.com) [xx.xx.xx.xx] lost while reading message data (header)
Hi Lee, Smells like path MTU. The connection died at what is probably the first time in the SMTP session that the remote system tried to send you a large, probably 1500 byte packet: the beginning (message header) part of the data portion (the email message headers and body themselves, as opposed to the sender and recipient declarations). This is not the only candidate cause, but that's what my mind jumps to. Try adjusting the TCP Maximum Segment Size on your server. Turn it down to 1200 or so and see if the problem vanishes. If so, somebody's losing ICMP packets. Regards, Bill Herrin -- William D. Herrin ................ herrin@dirtside.com bill@herrin.us 3005 Crane Dr. ...................... Web: <http://bill.herrin.us/> Falls Church, VA 22042-3004
William<br/><br/>Thanks for advice i will adjust and get update the status<br/><br/>Sent from Yahoo! Mail for iPhone
participants (4)
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Deepak Jain -
Kwas Lee -
Ted Hatfield -
William Herrin