I’m using one of Treepl’s website templates which has a form on the home page. I just tested the form and received the error email message below. Can anyone help me with this? I have no idea how to solve the issue. Thanks
<patriciajhughes@gmail.com>: host gmail-smtp-in.l.google.com[74.125.20.26]
said: 550-5.7.1 [34.217.169.117] Messages missing a valid messageId header
are not 550 5.7.1 accepted.
e14-20020a63d94e000000b00478160c9111si6900621pgj.259 - gsmtp (in reply to
end of DATA command)
Reporting-MTA: dns; mail.treepl.co
X-Postfix-Queue-ID: 0473A2CC4B7
X-Postfix-Sender: rfc822; admin@eplusmarketing.com
Arrival-Date: Sun, 11 Dec 2022 18:23:04 +0000 (UTC)