NethServer Version: NethServer release 7.3.1611 Module: i don’t know Good morning i have a account for smtp autenitcate but nbot function the port is 465 the user is example pippo@pluto.it and the psw is example Ap.456,smtp

Do you see any error in /var/log/maillog ?

92055454597: to= io@yahoo.it , relay=smtp.otmail.it [12.241.231.35]:465, delay=780, delays=479/0.04/300/0, dsn=4.4.2, status=deferred (conversation with smtp.otmail.it [12.241.231.35] timed out while receiving the initial server greeting) the relay ip and name is occasional

IIRC port 465 (SMTP over SSL) does not work with Postfix on NethServer. Only submission (port 587) with STARTTLS can work. I think it should be documented here http://docs.nethserver.org/en/v7/mail.html?highlight=Smarthost#messages …we should improve our docs /cc @docs_team

[image] davidep: IRC port 465 (SMTP over SSL) does not work with Postfix on NethServer. Only solution for smarthost is user and psw and port 25 the user and psw on port 465 and SSL not function the user and psw on port 587 and STARTTLS not function Is it correct?

It depends on your SMTP provider! Does it allow SMTP AUTH on port 25 after STARTTLS?

The official Postfix documentation explains how to configure it http://www.postfix.org/TLS_README.html#client_smtps …it seems your provider uses a deprecated TCP port!

[image] davidep: Does it allow SMTP AUTH on port 25 after STARTTLS? thank you very very mutch Forza ITALIA :slight_smile:

[image] HOWTO: Use SSL/port 465 in smarthost Howto Smarthost currently doesn’t permit to use port 465 with SSL to connect to a SMTP server: Tested in Nethserver V6.8 with Aruba SMTP server Maybe works in Nethserver V7 too 2017.06.21 EDIT: Yes, it works in v7 too 2021.…

my provider change access at 587 and function :slight_smile:

SMTP SmartHost authentication problem

Support

saitobenkei (Saito Benkei) April 26, 2017, 6:37am 10