Topic: Gmail problem with Wialon Local notifications
We stumbled on strange problem delivering notifications to users with gmail addresses. Since we upgraded from WL 2004 to 2104
our customers receiving notifications on gmail mail addresses sometime do not receive them with the following reply
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.
This is a huge problem since this behavior is intermittent and randomly occurs time to time on notification send to gmail account.
We send 4000+ mails daily to gmail servers and all other notifications are delivered to gmail accounts without any problem.
We are using local postfix service to send notification and it is used exclusively for Wialon Local.
Does anyone else noticed such behavior and did someone managed to resolve it?
Thank you in advance for any input