> Ok, I looked a bit deeper and from what I understand I need SASL (I have no
> cert that will be trusted by the peer, and from the above URL it looks like
> that will be a prerequisite to use TLS).

To be precise, the mailer I'll have to deliver mail to says (as only relevant
line in response to EHLO):

250-AUTH PLAIN LOGIN

This is stupid, I know. I have to cope. Duh!

Martin