Re: dovecot warns (non-fatal) "invalid EHLO response line: Unexpected character in EHLO keyword" connecting to submission relay ?

On 9/26/20 6:45 AM, Alec Moskvin wrote:

...

what's specifically invalid about

250 mail.messagingengine.com PIPELINING SIZE 73000000 AUTH DIGEST-MD5 CRAM-MD5 NTLM LOGIN PLAIN AUTH=DIGEST-MD5 CRAM-MD5 NTLM LOGIN PLAIN ENHANCEDSTATUSCODES 8BITMIME

by dovecot's 'measure'?

The "=" in AUTH=PLAIN.

See: https://dovecot.org/pipermail/dovecot/2020-September/119854.html

 $ openssl s_client -connect smtp.fastmail.com:465
 ...
 220 smtp.fastmail.com ESMTP ready
 ehlo asdf
 250-smtp.fastmail.com
 250-PIPELINING
 250-SIZE 71000000
 250-ENHANCEDSTATUSCODES
 250-8BITMIME
 250-AUTH PLAIN LOGIN
 250 AUTH=PLAIN LOGIN

ah! I'll take it up with fastmail. thx!