Use SSL 465 port on Relay

[saitobenkei]

HOWTO: Use SSL/port 465 in smarthost

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 2021.03.10 EDIT: Added sslVersion parameter to stunnel.conf This is the solution: Install stunnel: yum install stunnel Create a stunnel file configuration: vi /etc/stunnel/stunnel.conf With these lines output=/var/log/stunnel [smtp-tls-wrapper] accept=127.0.0.1:11125 client…

In smtp-tls-wrapper you may need to modify it as follows

[smtp-tls-wrapper]
accept=127.0.0.1:11125
client=yes
sslVersion=TLSv1.2
connect=Your.ISP.SMTP.Server:465