SASL authentication failure: No worthy mechs found

If you are trying to relay your smtp to another server, and recieving the error message above, please read on.

I take no credit for this. I simply coppied and pasted. I hope apple decides to add this as a feature.

The default policy is stricter than that of the Postfix SMTP server - plaintext mechanisms are not allowed (nor is any anonymous mechanism):

/etc/postfix/main.cf: smtp_sasl_security_options = noplaintext, noanonymous

This default policy, which allows no plaintext passwords, leads to authentication failures if the remote server only offers plaintext authentication mechanisms (the SMTP server announces "

AUTH PLAIN LOGIN

SASL authentication failure: No worthy mechs found

Note

This same error message will also be logged when the

libplain.so

or

liblogin.so

modules are not installed in the

/usr/lib/sasl2

directory.

The insecure approach is to lower the security standards and permit plaintext authentication mechanisms:

/etc/postfix/main.cf: smtp_sasl_security_options = noanonymous

You can find everything and more at this URL:

http://www.postfix.org/SASL_README.html#client_sasl_policy