[Dovecot] dsync replication errors

[Reindl Harald]

Am 17.02.2013 11:08, schrieb Timo Sirainen:
>> What parts of Dovecot would be involved? I'm curious because my production mailservers use identical hostnames in their jails ever since running Dovecot (starting 1.x).
> 
> Mainly that maildir filenames are used as GUIDs. If two have the same
> name, they are assumed to be identical. That's why the maildir filenames
> include the hostname in them, to make sure that the GUID is different
> even if two mails happen to be delivered at exactly the same time with
> the same PID and same size to two different servers. So pretty unlikely,
> but better to be safe. :)
> 
> There may be some other features that require unique hostnames in
> future. Anything where multiple Dovecot servers need to communicate
> between each others. If some day there is such generic communication
> between Dovecot servers I'm planning on enforcing this requirement.

Postfix is enforcing this since forever
"Greeted me with my own hostname"

hostnames inside a network should always be unique

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