Issue SmarterMail 16.3 Integration Issue: "Mailbox password changing is not supported" & "Mailbox is not supported" errors

[majidalizadeh.yb]

Server operating system version

Microsoft Windows Server 2022

Plesk version and microupdate number

Plesk Obsidian 18.0.80 Update #3

Hi everyone,

We are encountering an issue with the SmarterMail integration on two completely separate servers after recent updates.

Environment Details:

• Plesk Version: 18.0.80 Update 3 (Windows)
• Mail Server: SmarterMail 16.3 (Installed locally on each server)

Problem Description:SmarterMail itself is functioning normally when accessed directly via its web interface or management console. However, managing or updating email accounts from within the Plesk interface fails on both servers.

When refreshing server components via Tools & Settings > Server Components > Refresh, Plesk detects SmarterMail successfully with no errors. However, making changes to mail accounts in Plesk triggers the following errors across all domains:

1. Error: Unable to update the mail account properties: Unable update mailbox: Mailbox password changing is not supported
2. Error: Unable update mailbox: Mailbox is not supported

What we have verified so far:

1. Direct management inside SmarterMail works without issues.
2. Server Components refresh in Plesk completes successfully.
3. The issue occurs identically on two independent servers.

Has anyone experienced a similar issue after recent Plesk updates? Is SmarterMail 16.3 facing compatibility issues with this Plesk version, or is there a fix available?

(I have attached screenshots of the errors for reference.)

Thanks in advance!

 

[Sebahat.hadzhi]

Hi, @majidalizadeh.yb . Could you please try re-entering the SmarterMail credentials and hitting OK? Then refreshing it in Tools & Settings > Server Components. Thanks in advance.