Exim 4 and GSSAPI

[Andreas Metzler]

On 2024-11-14 "Ing. Tomáš Kala" <kala at barbucha.eu> wrote:
[...]
> I still looking for a guide, how to set up Exim 4 with GSSAPI
> authentication, but all I've found, is too old. The method is mentioned
> only. The Wiki page <https://github.com/Exim/exim/wiki/Authentication> does
> provide information about GSSAPI neither. What Kerberos is supported? MIT or
> Heimdal?

Both. https://www.exim.org/exim-html-current/doc/html/spec_html/ch-the_gsasl_authenticator.html
https://www.exim.org/exim-html-current/doc/html/spec_html/ch-the_heimdalgssapi_authenticator.html

Debian's exim binary packages do not have either of them enabled, you
would need to compile the binary yourself.

[snip]
> Dovecot works well with GSSAPI. But neither any
> howto found.
[...]

I have no experience with dovecot as a Kerberos proxy for exim, but I
use basically the example conf (with the change to 10-master.conf) from
the Debian package with a userdb backend.

cu Andreas
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