Solve GMAIL RFC 5322 Error
Budget: $10 – $30 USD
We have been experiencing an email reject when trying to email gmail clients:
host aspmx.l.google.com [142.250.102.26]
SMTP error from remote mail server after end of data:
550-5.7.1 [XXX.XXX.XXX.XXX] Our system has detected that this message is not RFC
550-5.7.1 5322 compliant: duplicate headers. To reduce the amount of spam sent
550-5.7.1 to Gmail, this message has been blocked. Please review
550 5.7.1 RFC 5322 specifications for more information. i8-20020a1709064fc800b0072af12ec70asi17481955ejw.121 - gsmtp
host aspmx.l.google.com [142.250.102.26]
SMTP error from remote mail server after end of data:
550-5.7.1 [XXX.XXX.XXX.XXX] Our system has detected that this message is not RFC
550-5.7.1 5322 compliant: duplicate headers. To reduce the amount of spam sent
550-5.7.1 to Gmail, this message has been blocked. Please review
550 5.7.1 RFC 5322 specifications for more information. i8-20020a1709064fc800b0072af12ec70asi17481955ejw.121 - gsmtp