The closing of connections are strange, it could be due to the GFW or some networking problem. We published some MX-proxy servers oversea for domains 163.com,126.com,yeah.net,vip.163.com,vip.126.com,188.com,etc, such as: $ dig +short 163mx01.mxmail.netease.com. 220.181.14.143 220.181.14.135 220.181.14.136 220.181.14.137 220.181.14.138 220.181.14.139 220.181.14.140 220.181.14.141 220.181.14.142 $ dig +short 163mx01.mxmail.netease.com. @8.8.8.8 43.230.90.5 $ The networking is better when senders are delivering from oversea to China mainland. For all postmasters, you'd try these proxy servers if you have delivering problems. But for the GitHub problem, we are seeing emails delivered normally into yeah.net/vip.163.com/vip.126.com/188.com and other sites. Only 163.com/126.com could miss their emails in a certain probability(yes not all of them), the logfiles tell that there're no inbound connections(or being closing unexpectedly before reaching our servers). More and more 163.com/126.com users are complaining about missing their GitHub emails. For now, we really need a GitHub postmaster/engineer to help. Anxiously, -Junping Chen At 2016-02-25 19:45:39, ml+mai...@esmtp.org wrote: >Maybe they run into something like this? > >220 126.com Anti-spam GT for Coremail System (126com[20140526]) >EHLO .... >Connection to 126mx02.mxmail.netease.com closed by foreign host. > >It takes a long time to get any reply... and then your sever >simply closes the connection. > > >And from a different system: > >220 126.com Anti-spam GT for Coremail System (126com[20140526]) >EHLO .... >250-mail >250-PIPELINING >250-AUTH LOGIN PLAIN >250-AUTH=LOGIN PLAIN >250-coremail >1Uxr2xKj7kG0xkI17xGrU7I0s8FY2U3Uj8Cz28x1UUUUU7Ic2I0Y2UFWs58gUCa0xDrUUUUj >250-STARTTLS >250-SIZE 73400320 >250 8BITMIME >mail from:<> >250 Mail OK >rcpt to:<postmaster> >Connection closed by foreign host. > >Hmm... > >_______________________________________________ >mailop mailing list >mailop@mailop.org >https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop
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