I experienced this a very long time ago receiving mail from one of the
paid spam services. I never did figure it out because I could not repeat
it at will.
I tried using recordio but never got the error while using it. If you
can use recordio and repeat the problem I'd be interested in seeing the log.
On 7/10/2020 2:15 AM, Chris wrote:
I've disabled spamdyke, the source of the 421 timeout error; but I'm
still getting re-delivery of emails. Not as frequently, but I've
received the same two emails a dozen times today.
Has anyone else experienced this before?
-Chris
On Tue, Jun 30, 2020 at 7:30 AM Chris <[email protected]
<mailto:[email protected]>> wrote:
A few nights ago I shut down the VM that my qmailtoaster runs on,
bumped the memory up to 4g, and restarted it. First reboot in a
long while, so I was nervous. Everything seemed fine.
The next day I noticed that there were a couple of emails I had
deleted that had re-appeared. I'd delete them again, and they'd
come back again. My mail client shows date sent and date
received, and they were definitely all the same sender time.
Checking the logs, I see the same set of email being re-accepted
in /var/log/qmail/smtp/current over and over.
Finally I have a clue. Gmail sent me a delivery warning about one
of the emails, as it was a test message from myself, and it says
my server is responding with error:
421 Timeout. Talk faster next time.
So it seems the email is getting accepted, but then the sending
server is given an error 421, so it queues it up for re-delivery.
Any suggestions on what I should be looking at to figure this out?
-Chris