nanog mailing list archives
Re: all major US carriers received text messages overnight that appear to have been sent around Valentine's Day 2019
From: "Mark Delany" <k3f () november emu st>
Date: 8 Nov 2019 21:26:34 +0000
What I've seen happen more often than that: Server goes partly belly-up, queue fills up. Backup process runs, backing up the queue. (Optionally here: Reboot the server and lose the queue). Much later, the server hits another issue that requires recovering from backups - and they restore a truly ancient copy.
Particularly as mail servers tend to check for expired messages *after* a delivery attempt. This means a restored queue containing ancient messages will most likely be given one last delivery attempt prior to bouncing. One real example comes from the qmail-send man page: queuelifetime Number of seconds a message can stay in the queue. Default: 604800 (one week). After this time expires, qmail-send will try the message once more, but it will treat any temporary delivery failures as permanent failures. Combine that with the fact that it's not unheard of for SMS servers to be derived from mail servers (since they do virtually the same thing) and an accidental queue restore or server revivication seems the most plausible. Mark.
Current thread:
- Re: all major US carriers received text messages overnight that appear to have been sent around Valentine's Day 2019, (continued)
- Re: all major US carriers received text messages overnight that appear to have been sent around Valentine's Day 2019 Brian J. Murrell (Nov 08)
- Re: all major US carriers received text messages overnight that appear to have been sent around Valentine's Day 2019 Brandon Svec (Nov 08)
- Re: all major US carriers received text messages overnight that appear to have been sent around Valentine's Day 2019 Matt Hoppes (Nov 08)
- Re: all major US carriers received text messages overnight that appear to have been sent around Valentine's Day 2019 Oliver O'Boyle (Nov 08)
- RE: all major US carriers received text messages overnight that appear to have been sent around Valentine's Day 2019 Kain, Becki (.) (Nov 08)
- Re: all major US carriers received text messages overnight that appear to have been sent around Valentine's Day 2019 Mark Stevens (Nov 08)
- Re: all major US carriers received text messages overnight that appear to have been sent around Valentine's Day 2019 David Hubbard (Nov 08)
- Re: all major US carriers received text messages overnight that appear to have been sent around Valentine's Day 2019 Jared Geiger (Nov 08)
- RE: all major US carriers received text messages overnight that appear to have been sent around Valentine's Day 2019 Kain, Becki (.) (Nov 08)
- Re: all major US carriers received text messages overnight that appear to have been sent around Valentine's Day 2019 Valdis Klētnieks (Nov 08)
- Re: all major US carriers received text messages overnight that appear to have been sent around Valentine's Day 2019 Mark Delany (Nov 11)
- Re: all major US carriers received text messages overnight that appear to have been sent around Valentine's Day 2019 Brandon Svec (Nov 08)
- Re: all major US carriers received text messages overnight that appear to have been sent around Valentine's Day 2019 Clayton Zekelman (Nov 08)
- Re: all major US carriers received text messages overnight that appear to have been sent around Valentine's Day 2019 Ben Cannon (Nov 08)
- Re: all major US carriers received text messages overnight that appear to have been sent around Valentine's Day 2019 Brian J. Murrell (Nov 08)
- Re: all major US carriers received text messages overnight that appear to have been sent around Valentine's Day 2019 Rich Kulawiec (Nov 11)
- Re: all major US carriers received text messages overnight that appear to have been sent around Valentine's Day 2019 Jim Shankland (Nov 08)
- Re: all major US carriers received text messages overnight that appear to have been sent around Valentine's Day 2019 Jared Mauch (Nov 08)
- Re: all major US carriers received text messages overnight that appear to have been sent around Valentine's Day 2019 Blake Hudson (Nov 08)
- Re: all major US carriers received text messages overnight that appear to have been sent around Valentine's Day 2019 bzs (Nov 09)
- Re: all major US carriers received text messages overnight that appear to have been sent around Valentine's Day 2019 Sean Donelan (Nov 08)
- Re: all major US carriers received text messages overnight that appear to have been sent around Valentine's Day 2019 Jim Stapleton (Nov 11)
- Re: all major US carriers received text messages overnight that appear to have been sent around Valentine's Day 2019 Peter Beckman (Nov 11)