How to configure smtp autentication method ?

[setecastronomy]

I configured smtp throught Core:sendmail but it doesn't work. The credentials are correct but I have no way to specify the smtp authentication method.
The smtp server I use wants "plain authentication": according to some posts I found on internet it would be otrs default method. Unfortunately using a sniffer otrs tries to authenticate with some sort of MD5 and fails. Is there a workaround ?

Thanks
Filippo

[setecastronomy]

Nobody has any idea on this topic ?

Looking at the sniffer the OTRS server send a message to the smtp server telling Auth Digest-Md5 or something similar.
That type of authentication is not supported on the smtp server, although it is not safe it wants clear credentials.

Thanks for helping
Filippo

[catweazle]

have a look at system and maillog and let us know

[crythias]

Sometimes you can whitelist the IP address of the OTRS server in the SMTP config/no authentication needed.

[setecastronomy]

I try to refine my question.
In Thunderbird mail client in the smtp server configuration dialog I can choose the following authentication methods:
1- No authentication
2 - Clear password on non ssl connection (free translation from my language)
3- Cypher password
4- Kerberos
5- Ntlm

I can send email from Thunderbird choosing the second option. Can you please confirm this authentication method is not supported in OTRS for smtp ?

Thanks
Filippo

[crythias]

No.

The sendmail uses Net::SMTP
It authenticates via the auth method (Requires Authen::SASL module)

There is no way to configure the SMTP authentication method, though it will try to ask the server what it supports and if it complies, it should provide.

This is more an issue with the SMTP server than with OTRS, and an easy (ish) way to get around this is to:

whitelist the IP address of the OTRS server in the SMTP server config/no authentication needed.