Docker-mailserver: Feature request: Kerberos authentication

[sspreitzer]

Hi

Would be cool to have Kerberos authentication support.

[johansmitsnl]

Could you provide a PR?

[sspreitzer]

No, for me the existing code is not really straightforward. It mostly assumes that setting SASL authentication only provides LDAP as a mechanism. The conditionals around that and the various configuration points/settings makes it really tedious. I think the code needs some refactoring to allow any mechanism to be swiftly implemented.

[djoq]

I forked, Kerberos is provided as the realm in LDAP. In target launch script, hostname and domain name need be a match to achieve expected behavior.

[johansmitsnl]

@djoq can you provide a PR for this feature?

[djoq]

Since the tests are failing @johansmitsnl, maybe it’s best to leave this the way it was. There exists issues discussing how this is more of a preference than a bug. It fixed the bug for my case, but as others has mentioned, this does require that unique email prefixes be set and causes conflicts in multi-domain/ email prefix uniqueness. Out of curiousity, which critical tests are failing?

[johansmitsnl]

@djoq I did not mention that tests are failing. What do you mean?

[djoq]

See below.

https://github.com/tomav/docker-mailserver/pull/1036

[aendeavor]

This issue was closed due to one or more of the following reasons:

1. Age
2. Contributor inactivity
3. The issue seems to be resolved

If you think this happened by accident, or feel like this issue was not actually resolved, please feel free to re-open it. If there is an issue you could resolve in the meantime, please open a PR based on the current master branch so we can review it.