# Moving primary domain to be additional domain

**URL:** <https://discourse.mailinabox.email/t/moving-primary-domain-to-be-additional-domain/16282>\
**Category:** Help with Setup/Upgrade\
**Created:** [February 28, 2026, 4:08am UTC](https://discourse.mailinabox.email/t/moving-primary-domain-to-be-additional-domain/16282 "2026-02-28T04:08:18Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Plx](https://discourse.mailinabox.email/letter_avatar_proxy/v4/letter/p/6f9a4e/32.png) [@Plx](https://discourse.mailinabox.email/u/Plx)\
**Post date:** [February 28, 2026, 4:08am UTC](https://discourse.mailinabox.email/t/moving-primary-domain-to-be-additional-domain/16282/1 "2026-02-28T04:08:19Z")

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Hi there. I am attempting to migrate my MIAB email accounts to a new server, but which running under a different primary (setup) domain name. I presently have example\_11.com running as the main domain, with example\_22.com running as an additional domain in the same setup. I have set up a new MIAB instance running with example\_33.com as the primary (setup) domain.

I want to move the data for the example\_11 (& example\_22) to their same email addresses etc but now be additional domains on the new domain\_33 server. Can I just use the standard (built-in) backup & restore process as per the migration maintenance guide? I have done a simple migration once before when moving VPS hosts, but nothing like this. Or, under these circumstances do I have do it the long way of copy / move each mail folder to an intermediary account, & then move the example\_11 & example\_22 to the new machine?

Hope that makes sense. Thanks 🙂

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**Author:** ![system](https://discourse.mailinabox.email/uploads/default/original/2X/4/4d0933d13c456b7e57f296aa6cc344525b6f0c70.png) [@system](https://discourse.mailinabox.email/u/system)\
**Post date:** [March 7, 2026, 4:08am UTC](https://discourse.mailinabox.email/t/moving-primary-domain-to-be-additional-domain/16282/2 "2026-03-07T04:08:41Z")

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