Hi SmarterTools team! I had a customer report to me that SmarterMail password reset emails were getting rejected by Gmail with the following message in the Delivery log...
[2019.07.31] 12:58:03.097 [07750] RSP: 550-5.7.1 [xxx.xxx.xxx.xxx 14] Messages missing a valid address in From:
[2019.07.31] 12:58:03.097 [07750] RSP: 550 5.7.1 header, or having no From: header, are not accepted. r22si82549113ioh.94 – gsmtp
When I looked at the From address it is as follows...
[2019.07.31] 12:58:02.816 [07750] CMD: MAIL FROM:<> SIZE=1803
This tells me that Gmail is rejecting the message because system messages are sent with the null sender <>.
I'm proposing that SmarterTools change the null sender on system messages to an actual email address so that Gmail stops rejecting these.
Thanks for your consideration.
Linda Pagillo
Mail's Best Friend
Email: linda.pagillo@mailsbestfriend.com
Web: www.mailsbestfriend.com
Authorized SmarterTools Reseller
Authorized Message Sniffer Reseller