I suspect this is a naive question but I'm at a loss how to fix
this.
I send emails using thunderbird and msmtp.
I post via my ISP's smtp server (smpt.zen.co.uk)
This has allowed me to send emails to any one as any one.
e.g. this has come from alug@nevilley.org.uk
very recently emails sent to gmail users have started to bounce
undelivered with the likes of:
(email address redacted)
This message was created automatically by mail delivery software.
A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:
##############@gmail.com
host gmail-smtp-in.l.google.com [108.177.15.27]
SMTP error from remote mail server after pipelined end of data:
550-5.7.26 This message does not pass authentication checks (SPF and DKIM both
550-5.7.26 do not pass). SPF check for [nevilley.org.uk] does not pass with ip:
550-5.7.26 [212.23.1.22].To best protect our users from spam, the message has
550-5.7.26 been blocked. Please visit
550-5.7.26 https://support.google.com/mail/answer/81126#authentication for more
550 5.7.26 information. p9-20020adfe609000000b002ca647fe919si1349235wrm.527 - gsmtp
Do I need to do something with thunderbird on my PC or is this a problem for Zen?
Any help gratefully received.
Nev