Microsoft 365 IMAP Emailยถ
Connect a Microsoft 365 account (formerly โOffice 365โ) via IMAP to Zammad.

Hint
What is the difference between the Graph-API- and IMAP-based M365 channel?
The Graph-API variant has some advantages over the IMAP-based channel:
Shared mailboxes are implemented in a better way. By using them, you can save some license costs.
The selection of an inbox folder is implemented with a tree-select field in Zammad. So you can choose a folder from the fetched folder list, which is much less error-prone.
It is the future-proof way of connecting to your M365 environment.
It is more secure and scalable and offers a unified endpoint.
So, if you are in doubt which one to use, we recommend using the Graph channel.
Note
Microsoft 365 channels are a specialized kind of ๐จ email channel.
If youโre already familiar with email channels, you can skip most of this - but you should have a look at the Accounts section, which differs from a standard email setup.
- ๐ฅ Accounts
Connect Zammad to your email provider so that it can watch your inbox, send auto-replies, and more.
(Self-hosted users may have already completed this step during new system setup.)
- ๐๏ธ Filters
Make sure new tickets show up in the right place with automated, if-this-then-that rules for all incoming email.
- ๐ Signatures
Customize signatures for all outgoing email.
- โ๏ธ Settings
Manage options like:
set the โFrom:โ address on system notifications
raise the limit on attachment sizes
modify subject-line prefixes (e.g., use โAW:โ instead of โRE:โ)
Hint
Want to manually edit email subjects or always copy parent messages into your replies?
Check the โ๏ธ Composer Settings.
- ๐ Header based actions
Manipulate auto response behavior or incoming routing.
Warning
๐ค This is a very advanced topic.
- ๐ Common M365 errors
Here you can find common errors and how to fix them.