I have a Plone 5 site set up and working great. However, I can't get mail to work. I'm currently using SMTP server: aspmx.l.google.com on port 25. When I click "Save and send test e-mail" it says " Error Unable to send test e-mail please run connect() first."
I have another site set up on Plone 4 with the exact same SMTP server configuration, and it works. So I'm not sure what's going on. Any ideas? Is there anything special I have to do to set up Plone mail on the server end?
I have more info, from the log file:
2023-03-02 15:31:46,955 ERROR [Plone:88][waitress-1] Unable to send test e-mail.
Traceback (most recent call last):
File "/opt/plone/buildout-cache/eggs/zope.sendmail-5.1-py3.8.egg/zope/sendmail/mailer.py", line 115, in send
connection.sendmail(fromaddr, toaddrs, message)
File "/usr/lib/python3.8/smtplib.py", line 901, in sendmail
raise SMTPDataError(code, resp)
smtplib.SMTPDataError: (550, b'5.7.1 [159.203.178.69] Messages missing a valid messageId header are not\n5.7.1 accepted. c126-20020ae9ed84000000b0074271e0c985si12214380qkg.189 - gsmtp')
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/opt/plone/buildout-cache/eggs/Products.CMFPlone-5.2.2-py3.8.egg/Products/CMFPlone/controlpanel/browser/mail.py", line 79, in handle_test_action
mailhost.send(message,
File "/opt/plone/buildout-cache/eggs/Products.MailHost-4.9-py3.8.egg/Products/MailHost/MailHost.py", line 213, in send
self._send(mfrom, mto, messageText, immediate)
File "/opt/plone/buildout-cache/eggs/Products.MailHost-4.9-py3.8.egg/Products/MailHost/MailHost.py", line 320, in _send
self._makeMailer().send(mfrom, mto, messageText)
File "/opt/plone/buildout-cache/eggs/zope.sendmail-5.1-py3.8.egg/zope/sendmail/mailer.py", line 117, in send
self._close_connection()
File "/opt/plone/buildout-cache/eggs/zope.sendmail-5.1-py3.8.egg/zope/sendmail/mailer.py", line 75, in _close_connection
self.connection.quit()
File "/usr/lib/python3.8/smtplib.py", line 997, in quit
res = self.docmd("quit")
File "/usr/lib/python3.8/smtplib.py", line 424, in docmd
self.putcmd(cmd, args)
File "/usr/lib/python3.8/smtplib.py", line 371, in putcmd
self.send(str)
File "/usr/lib/python3.8/smtplib.py", line 363, in send
raise SMTPServerDisconnected('please run connect() first')
smtplib.SMTPServerDisconnected: please run connect() first
It seems like Plone's test email is not including a messageid header? I'm not sure how to fix this. Anyone have any ideas?
I haven't heard of a messageid header before. It sounds like some requirement that GMail is enforcing in order to accept mail.
This thread makes me think that it might help to ensure that the domain that the email is being sent from has an SPF record which allows relaying mail from the Plone site's IP address. Message could not be delivered due to Missing valid MessageID Header - Gmail Community