I've searched and failed, and I realise I'm going to show my total
ignorance by not having found an answer (and no, I've not been keeping
up these last few years - mea culpa - demanding day-job). But - I'd be
grateful for any (gentle or otherwise) cluebats.
I have several OpenBSD email servers, some elderly (Sendmail) and some
brand-spanking new (smtpd). Recently I've noticed that some (of both
kinds) are failing to deliver mail to some major UK ISPs. (Mostly
domestic; business ISPs not so much.)
For Sendmail, the error is "TLS handshake failed"; for smtpd, it's
"Network error on destination MXs".
I do have SPF etc setup; thought that might be it, but no. I've read
that some ISPs have closed port 25. I presume that's relevant, but I
simply don't know.
As I said, all cluebats gratefully (and probably painfully) accepted.
Steve
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Steve Fairhead
email: st...@fivetrees.com
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