On 06/06/2021 07:34, Larry M. Smith via mailop wrote: > Seems that gmail.com's MTA can't properly speak SMTP. [...]
$ telnet imp.fahq2.com smtp Trying 47.12.77.216... Connected to imp.fahq2.com. Escape character is '^]'. 220 "helob0gus.fahq2.com ESMTP" The syntax of the initial greeting offered by your MX includes double quote characters which don't look to be complaint with the syntax of an SMTP reply as specified by RFC 5321 section 4.2. SMTP Replies. Perhaps your MTA might be the problem?
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