Cannot use Smarthost

Support
1

Hi all,

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.
Lucius.

2

Hi Luciano,

Do you have a valid domain (public not .local)?
Did you check your DNS settings?

Maybe this will help you: https://www.hmailserver.com/forum/viewtopic.php?t=27688
Or: https://www.arclab.com/en/kb/email/smtp-response-codes-error-messages.html

Edit:

Try here, also at “Commenti”: http://blog.email.it/guida-agli-errori-dei-programmi-di-posta-e-di-consegna-dei-messaggi/comment-page-1/

And here: http://www.serversmtp.com/it/errore-smtp

Please check all your email settings.

3

you must provide us many other info about your setup