Forum Discussion
MatoBoost
Jul 02, 2026Tin Contributor
New Outlook: "Changing the ImapRemoteServerInfo is not allowed" after host migration
Hi everyone! I've migrated my domain/mailbox from one IMAP host to another in May. It cannot be added to New Outlook for Windows — fails instantly with INVALID_CREDENTIALS INTERACTION_REQUIRED, even...
FauziHafidz
Oct 13, 2026Copper Contributor
Hi Robert,
I was referred to this discussion by Microsoft Q&A Support because I am experiencing the same issue with New Outlook after migrating my email hosting provider.
Affected email: mailto:email address removed for privacy reasons
Old IMAP server: sc135.idcloudhosting.cloud
New IMAP server: mail.alphasys.id
New Outlook keeps reverting to the old IMAP server even after manually entering the new configuration.
Troubleshooting performed:
- Removed the account from all devices.
- Tested on a completely new Windows device.
- Verified DNS resolution and IMAP/SMTP connectivity.
- Confirmed that cPanel Autoconfig returns the correct new server.
- Confirmed another mailbox under the same domain works correctly.
Could you please help escalate this issue to the Outlook Team for a possible server-side reset of the IMAP server association (ImapRemoteServerInfo)?
Thank you for your assistance.