> On 22/09/2025 03:52 EEST Laura Steynes via dovecot <dovecot@dovecot.org>
> wrote:
>
>
> We have two main mail server system, our broadband users on one, and, our
> hosting clients on another, because of the large number of customers on
> both, we use the following formats, I am looking at adding one dovecot 2.4
> front end to the farm to see how it will perform, but with a such a
> complete rewrite requiring variable entry like we are all C programmers who
> understand code, which we are not and do not, I'm having headaches getting
> my head around how to convert these to this new weird format
>
> Broadband Users: jciti...@example.net = /vmail/example.net/j/c/i/jcitizen
> mail_location = maildir:/vmail/%Ld/%1Ln/%1.1Ln/%2.1Ln/%Ln/Maildir
>
>
>
> Hosting Clients: jciti...@example.net = /vmail/e/x/a/example.net/jcitizen
> mail_location = maildir:/vmail/%1Ld/%1.1Ld/%2.1Ld/%Ld/%Ln/Maildir
>
> Any help appreciated, we have no intentions of moving from 2.3.x in any
> foreseeable future, but if the time comes we must, we want to be able to
> have a plan to enact.
>
> -Loz
> We have two main mail server system, our broadband users on one, and, our
> hosting clients on another, because of the large number of customers on
> both, we use the following formats, I am looking at adding one dovecot 2.4
> front end to the farm to see how it will perform, but with a such a
> complete rewrite requiring variable entry like we are all C programmers
> who understand code, which we are not and do not, I'm having headaches
> getting my head around how to convert these to this new weird format
>
> Broadband Users: [1]jciti...@example.net =
> /vmail/[2]example.net/j/c/i/jcitizen
> mail_location = maildir:/vmail/%Ld/%1Ln/%1.1Ln/%2.1Ln/%Ln/Maildir
>
>
>
>
> Hosting Clients: [3]jciti...@example.net =
> /vmail/e/x/a/[4]example.net/jcitizen
> mail_location = maildir:/vmail/%1Ld/%1.1Ld/%2.1Ld/%Ld/%Ln/Maildir
> Any help appreciated, we have no intentions of moving from 2.3.x in any
> foreseeable future, but if the time comes we must, we want to be able to
> have a plan to enact.
> -Loz
>
/vmail/%1Ld/%1.1Ld/%2.1Ld/%Ld/%Ln/Maildir =>
/vmail/%{domain|substr(1,1)}/%{domain|substr(2,1)}/.. etc.
See
https://doc.dovecot.org/2.4.1/installation/upgrade/2.3-to-2.4.html#variable-expansion
Aki
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