Is it possible to send a mail via another mail?
Example: You send a mail to sendnewsletter@whatever.com and the email will be sent to the list.
It would be great if that is possible.
Regards,
Philipp
This used to be possible via a plugin, which is old enough that it does not work anymore.
https://resources.phplist.com/plugin/submitbymail
I believe one of the community developers tried updating it, but stopped working on after having issues getting it to work.