On Mon, Nov 13, 2017 at 10:02 AM, Rich Shepard <rshep...@appl-ecosys.com> wrote: > Running postfix-3.2.4 here on Slackware-14.2. I am a professional services > sole practitioner, not a professional system or network admin. > > After several years having outbound mail forwarded through my ISP's mail > server I changed ISPs and now have a static IP address. The other recent > change > here is replacing the old Netgear FVS318 router with a Ubiquiti EdgeRouter-X > fast enough to take advantage of the 15/5Mbps speeds of my fiber connection. > > Since the end of last week I find many messages delayed 1-2 days; several > hundred are listed in logwatch's daily report. These delayed messages > include may body_check rejections. However, since Friday pflogsumm is also > delayed rather than delivered. There are now 2 messages in the mail queue: > > # mailq > -Queue ID- --Size-- ----Arrival Time---- -Sender/Recipient------- > 5E148991FE 182118 Mon Nov 13 03:10:26 root > rshep...@appl-ecosys.com > > EF1E2991FD 815 Mon Nov 13 06:59:09 rshep...@appl-ecosys.com > (connect to AAAAA.AAAAA.AAA[DDD.DDD.D.DD]:25: Connection timed out) > mail-list-n...@mail.list.org > > The output of postdconf -Mf is attached. So is the output of the DDD log > generated after I modified master.cf by appending '-D' to the smtp line. > > I need to learn how to locate the source of this problem and how to fix > it. If more information is needed let me know and I'll provide it. >
I would hazard a guess that your outbound email packets are being dropped somewhere. Try using telnet on your mail server to connect to port 25 of the remote mail server (mail.appl-ecosys.com.) and see what happens. Also, check your mail log file. You may have to have a list of domains that you continue to relay through your ISP's mail server. You would do this with a transport map. Simon
