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Afaik no, it's an "all or nothing" approach. You can however restrict access via IP, if that's an option.
How to allow IMAP for a specific application, but restrict for anything else.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(291.2, 44%, 38%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJM%3C/text%3E%3C/svg%3E)
John Meyer
1
Reputation point
Hello all,
Due to the risk of bad actors exploiting Legacy Authentication types, we would like to turn off access to IMAP, POP, etc. We are currently use Zoho CRM and it requires IMAP to connect to o365 mail.
Is there a way to turn off legacy mail such as IMAP for everything except one application (Zoho CRM)?
Any ideas?
Thanks in advance!
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(246.4, 22%, 33%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EKY%3C/text%3E%3C/svg%3E)
Kael Yao 37,746 Reputation points Moderator2024-02-19T01:28:25.5166667+00:00 Hi @John Meyer, Just checking in to see if above information was helpful. Please let us know if you would like further assistance.
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(160, 22%, 25%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EYB%3C/text%3E%3C/svg%3E)
Yikuno Barnaby 0 Reputation points2025-03-11T16:49:07.22+00:00 Hi, did this resolve the issue?
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Vasil Michev 119.5K Reputation points MVP Volunteer Moderator2024-02-17T15:47:04.5333333+00:00