I would create my personal account under It domain but using the provider’s pop3 server to receive mails.
What I want is to use NethServer to send mails and the provider’s pop server to receive incoming mails so I’m trying to set up Smarthost for the outgoing ones.
I tried several providers (gmail.com, libero.it, tin.it) but I cannot make it work.
With some providers all the mails remain in the exit list but they aren’t sent, using e.g. smtp.libero.it or smtp.wind.it (my connection is cellular connection type), I always receive the following error message:
Diagnostic-Code: smtp; 550 Invalid Mailfrom [smtp-16.iol.local; LIB_430]
What I make wrong in setup parameters?
Thanks in advance for your kindly support.