Hi everyone. Running postfix on Centos 7 with Virtualmin. VPS providor is Vultr who black port 25.
Outward emails are timing out. After nights of of searching and a lot of reading I am at a dead end. I have submission port (587) open and TLS certificates installed. I passed all the tests on mxtoolbox.com for mx record and smtp test. I have a spf record denying all but my server hostname and domain. I also have DMARC enabled. (I tried without this but it made no difference). Traceroute shows mail is leaving my server from UK but being stopped in US for some reason (shown below). My IP address is 104.238.174.225. *traceroute -n -T -p 587 gmail-smtp-in.l.google.com* traceroute to gmail-smtp-in.l.google.com (173.194.78.26), 30 hops max, 60 byte packets 1 * * * 2 212.187.138.145 0.225 ms 0.448 ms 0.550 ms 3 4.69.162.146 7.716 ms 8.197 ms 4.69.162.150 8.023 ms 4 * * * 5 * * * 6 * * * 7 * * * 8 * * * 9 * * * 10 * * * 11 * * * 12 * * * 13 * * * 14 * * * 15 * * * 16 * * * 17 * * * 18 * * * 19 * * * 20 * * * 21 * * * 22 * * * 23 * * * 24 * * * 25 * * * 26 * * * 27 * * * 28 * * * 29 * * * 30 * * * * traceroute -n -T -p 587 mx2.hotmail.com* traceroute to mx2.hotmail.com (65.55.37.120), 30 hops max, 60 byte packets 1 * * * 2 212.187.138.145 0.305 ms 0.915 ms 0.981 ms 3 4.69.166.146 32.749 ms 4.69.166.134 29.337 ms 4.69.166.150 33.061 ms 4 4.69.166.134 0.775 ms 4.69.166.138 0.658 ms 4.69.166.146 0.481 ms 5 * * * 6 * * * 7 149.11.30.66 0.584 ms 1.414 ms 1.002 ms 8 191.234.81.154 1.878 ms 1.644 ms 2.561 ms 9 207.46.44.155 4.041 ms 3.358 ms 2.951 ms 10 204.152.141.191 69.352 ms 191.234.85.31 70.527 ms 70.047 ms 11 191.234.81.87 71.304 ms 71.374 ms 72.807 ms 12 191.234.84.142 74.699 ms 74.936 ms 75.633 ms 13 191.234.85.32 76.375 ms 77.309 ms 76.553 ms 14 * * * 15 * * * 16 * * * 17 * 191.234.82.239 140.304 ms * 18 191.234.84.222 116.462 ms 116.001 ms 115.370 ms 19 * * 191.234.84.176 119.549 ms 20 * * * 21 * 191.234.82.236 140.823 ms 140.622 ms 22 * * * 23 * * * 24 * * * 25 * * * 26 * * * 27 * * * 28 * * * 29 * * * 30 * * * Any help would be very much appreciated. Talen -- View this message in context: http://postfix.1071664.n5.nabble.com/Postfix-Outward-Connections-Time-out-What-I-have-learned-so-far-tp75691.html Sent from the Postfix Users mailing list archive at Nabble.com.
