Hello
I have a question about forwarding email to Gmail. Gmail requires the
sender to provide identity authentication, including SPF or DKIM. Some
of our old customers do not have dkim configured in their email system,
but they do have spf. There is no problem sending messages directly to
Gmail because SPF has been approved. However, if the customer's mail is
forwarded, such as through a mailing list. The forwarding server uses
SRS, so the sender in the header cannot pass SPF verification because
envelope is rewritten to the address of the forwarding server. For
sender in header, SPF is not checked, and DKIM of the original letter is
missing. Therefore, this email will be rejected by Gmail. Is that
correct? Is there any other way to improve this besides adding dkim?
Thanks & regards
_______________________________________________
Postfix-users mailing list -- postfix-users@postfix.org
To unsubscribe send an email to postfix-users-le...@postfix.org
