Authentication problems with Microsoft SMTP server

Authentication problems with Microsoft SMTP server

I'm using Microsoft SMTP server and I get an error when trying to connect with the Advanced Newsletter extension.


If you are getting the '5.7.4 Unrecognized authentication type' error when trying to connect with Advanced Newsletter, it means that your Microsoft SMTP server is configured to use the 'NTLM' authentication scheme.


This problem is inherited from the Zend Framework. Zend_Mail Library does not support NTML authentication.


As stated in the framework documentation, the supported authentication methods are:

- PLAIN

- LOGIN

- CRAM-MD5


If you have faced the above problem, check if it is possible for you to re-configure the Microsoft SMTP Server to use any of authentication methods listed above.