On 25-Feb-10 00:22, Brian Willoughby wrote:
Their site times out after one minute of waiting for a response to an
SMTP connection, and considers the destination to be invalid at that point.

a 60s timeout on SMTP is too short. The recommend is... erm, 15 minutes comes to mind though I would argue that is too long anymore. 5m is certainly defensible. I've seen servers with timeouts set to 15s, but those are run by people who really don't want to receive email from the world at large.

However, you are unlikely to be able to educate the admins on the other server unless 1) you have the power to fire them or 2) they are in range of your nerf-bat.

Some copies of the log lines would be useful, as well as knowing what sort of setup you are using. Running your own locally-caching DNS? Does this happen on every connection to that server, or only occasionally?

It's only recently that I called a client on the phone to find out
why they had not responded to my email, and that's when I learned it had been bounced by their system.

Erm, BOUNCED implies they RECEIVED the mail, ACCEPTED the mail, and then decided they couldn't deliver it, so bounced it back. In the scenario you described, the message should have been REJECTED. If they did, in fact, BOUNCE the message that is a bad sign.

If the message was REJECTED, the question would then be how could you not know? Don't you check your logs for problems like this? Or is this server basically personal? If you're handling mail for anyone other than yourself, you should have a log analyzer that send you mails showing any issue that might need attention. I run postfix, so my log analyzer is pflogsum, which I run via cron every time the log rolls.

--
They all have husbands and wives and children and houses and dogs,
        and you know, they've all made themselves a part of something
        and they can talk about what they do. What am I gonna say? \"I
        killed the president of Paraguay with a fork. How've you been?\"
_______________________________________________
MacOSX-admin mailing list
[email protected]
http://www.omnigroup.com/mailman/listinfo/macosx-admin

Reply via email to