Am 29.03.2012 09:35, schrieb Ralf Hildebrandt: > * Per Jessen <p...@computer.org>: >> I'm wondering how others handle this. We offer TLS for all inbound >> traffic, which works fine 99% of the time. Every other day though I >> notice one or two mailservers who simply cannot cope with it. They try, >> but they keep getting a timeout. Something is clearly not working on >> their side and the email will eventually not get delivered. (I'm pretty >> certain they're all MSEX, but that's just a hunch). >> >> To prevent this I check our logs regularly and use >> smtpd_discard_ehlo_keyword_address_maps to disable starttls for those >> servers that have a problem. It's a bit of a hassle, so I was wondering >> how others handle it? > > I handle it exactly the same way. On a related issue: There are > systems which request DSN (delivery status notification), but once our > system sends those, their server won't accept them. >
yes, i noticed that too -- Best Regards MfG Robert Schetterer Germany/Munich/Bavaria
