[Oberon] RFC 5322 and ETH Oberon SMTP.

peter at easthope.ca peter at easthope.ca
Thu Jul 14 18:23:06 CEST 2022


Hi,

Some of my messages sent by SMTP in the Oberon subsystem of A2 bounce 
with a report such as this.

<aabbcc at gmail.com>: host gmail-smtp-in.l.google.com[142.250.102.26] said:
    550-5.7.1 [192.185.50.161] Our system has detected that this message is not
    RFC 550-5.7.1 5322 compliant. To reduce the amount of spam sent to Gmail,
    this 550-5.7.1 message has been blocked. Please review 550 5.7.1  RFC 5322
    specifications for more information.
    gs16-20020a1709072d1000b00718c7b4cbeasi2856260ejc.991 - gsmtp (in reply to
    end of DATA command)

The reference to RFC 5322 is non-specific.  Most incidents are for 
Gmail addresses but some other addresses have produced bounces.

Ideas?

Thx,                                 ... P.



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