Reusage of existing mail backend

[nihab]

Hello,
is it possible to integrate Zimbra to an existing mail service?
We're thinking about to use Zimbra but do not want to replace the messaging backend. The level of integration would be the protocoll level (imap, pop, smtp).
The current backend provides these interface to the frontends.

Thanks, best regards,
nihab

[uxbod]

Welcome to the forums

Zimbra is a complete messaging and collaboration suite and ships its own versions of IMAP/POP3/SMTP services. These services are integral to the internal working of Zimbra.

Why not migrate your backend mail services to Zimbra ?

[nihab]

...
Why not migrate your backend mail services to Zimbra ?

Hi,
because the backend has to be used for other frontends as well. We had already designed a SOA-alike service plattform, where the "service" interfaces are IMAP/POP/SMTP.
To replace an exsiting Web-Frontend (with some new features like PIM, etc.) we want to hook into this IFs.
(The underlying storage use USER/FOLDER/eMAIL-file structure (maybe cyrus alike), but in our IT paradigm this is not a "legal" access pattern.)

best regards,
nihab

[uxbod]

As far as I am aware you *cannot* split out the frontend services and retain your own backend mail services as it is a complete suite.

[dkarp]

Please note that Zimbra includes very robust IMAP, POP, and SMTP interfaces.

[nihab]

Please note that Zimbra includes very robust IMAP, POP, and SMTP interfaces.

robustness is not the point. As we have an exsiting plattform with 2M++ accounts we will not migrate to another plattform. Especially because other frontends uses special features of the email backend.

But thanks for the hint.

[mmorse]

Welp, you could always give us a clue what those are & we can let you know if something similar is possible with Zimbra.