Duplicate emails in custom folder after upgrade to 2024-11b when using SOGo filter rules with alias Description: After upgrading to mailcow version 2024-11b, I encountered an issue with duplicate emails when using SOGo filter rules with mailcow alias setup. This behavior didn't occur in previous versions. Current Setup: - Mailcow version: 2024-11b (recently upgraded) - Created an alias: grouptest@example.com -> test@example.com - Created a SOGo filter rule: if To/Cc contains "grouptest@example.com" then move to "grouptest" folder Issue Description: 1. Without filter rule: - When sending an email to both grouptest@example.com and test@example.com - Only one email appears in the inbox (SOGo automatically deduplicates) 2. With filter rule: - Same email sent to both addresses - Two identical emails appear in the "grouptest" folder - Both emails have: * Same Message-ID * Different X-Original-To headers (one for each address) Important Note: - This issue started occurring after upgrading to version 2024-11b - Previous versions handled this scenario correctly with only one email appearing in the custom folder Expected Behavior: - Only one email should appear in the custom folder, just like in the inbox - Should work the same way as it did in previous versions Question: - Is this a known issue with the new version? - Is there a way to prevent duplicates in custom folders while maintaining the filter rule? - Are there any configuration changes needed after the upgrade?

SOGo filter causing email duplicates in custom folder after 2024-11b upgrade

eagleye1115

Duplicate emails in custom folder after upgrade to 2024-11b when using SOGo filter rules with alias

Description:
After upgrading to mailcow version 2024-11b, I encountered an issue with duplicate emails when using SOGo filter rules with mailcow alias setup. This behavior didn’t occur in previous versions.

Current Setup:

Mailcow version: 2024-11b (recently upgraded)
Created an alias: grouptest@example.com -> test@example.com
Created a SOGo filter rule: if To/Cc contains “grouptest@example.com” then move to “grouptest” folder

Issue Description:

Without filter rule:
- When sending an email to both grouptest@example.com and test@example.com
- Only one email appears in the inbox (SOGo automatically deduplicates)
With filter rule:
- Same email sent to both addresses
- Two identical emails appear in the “grouptest” folder
- Both emails have:
  - Same Message-ID
  - Different X-Original-To headers (one for each address)

Important Note:

This issue started occurring after upgrading to version 2024-11b
Previous versions handled this scenario correctly with only one email appearing in the custom folder

Expected Behavior:

Only one email should appear in the custom folder, just like in the inbox
Should work the same way as it did in previous versions

Question:

Is this a known issue with the new version?
Is there a way to prevent duplicates in custom folders while maintaining the filter rule?
Are there any configuration changes needed after the upgrade?