kolab_smtp_access_policy - rejects empty from

[Jan Kowalsky]

Am 23.10.2017 um 12:10 schrieb Jan Kowalsky:
> Hi all,
> 
> a view days ago I wrote here on the list about problem that incoming
> mails via smtpd are not checked against kolab_smtp_access_policy. This
> was because missing default configs in kolab 3.4.
> 
> Anyway. Now the mails are checked with the side effect that empty
> envelope headers are now rejected completely.
> 
> 554 5.7.1 <DATA>: Data command rejected: Recipient access denied;
> from=<> to=....
> 
> This is against https://tools.ietf.org/html/rfc1123#section-5.2.9.
> 

ok, this is configurable in kolab.conf:

empty_sender_hosts =

but the default configuration here doesn't make sense. Normally there
should be 0.0.0.0/0 because we want to accept empty senders from everywhere.

Furthermore there is/was a bug in kolab_smtp_access_policy: so this
empty senders didn't work at all with mysql cache. There is a fix - but
not for kolab 3.4 and I don't know if the patch is already in kolab16.

Regards
Jan