gmail+SMTP(only) (oauth2)

[Bob Rogers]

   From: Uwe Brauer <oub@mat.ucm.es>
   Date: Tue, 17 May 2022 18:34:39 +0200

   Hi

   Today I got the unofficial approval to forward my email to an account
   of my choice, if I can't access my mail with TLS (SSL or the gmail
   app password anymore)

   However I have been warned that the message should have a from field
   with a domain of my university. (@mat.ucm.es for example).

   Now I could either use

       1. The smtpmail (or sendmail) program of my linux machine (not
          sure about MacOS

I have implemented this for my own domains (principally rgrjr.com) for
over a year now with acceptable results.  The only catch is that emails
forwarded from Google have to be relayed through a VPS in order to avoid
my ISP's embargo on port 25, since Google does not offer forwarding to
an arbitrary port.  But this setup should work just as well for a domain
for which you are not the admin, and will give you complete control over
how to process messages on your home GNU/Linux system.  And the setup
for outgoing email is no different than before.

   . . .

   In any case I have been warned that my mails could be blacklisted.

   Anybody has experience with such a service/setting?

   Regards

   Uwe Brauer 

My emails do have some tendency to end up in peoples' spam folders.  But
whether that's more or less than for other senders (including some GMail
clients who have tried to send to me) is harder to say.

                                        -- Bob Rogers
                                           http://www.rgrjr.com/