Major issues and feature requests
While the new system brings many improvements, I’ve identified two critical shortcomings that I believe should be addressed:

Lack of an export/import option for server configuration, users, and domains via the web interface.

This feature would make server migration or disaster recovery much easier and faster. Right now, the process is more complicated than it should be.
Lack of sorting options for users by mailbox size and last login.

Mailbox size: I don’t use per-user quotas, meaning users can utilize all available storage. However, the ability to sort users by mailbox size would be useful.
Comment by Zhang Huangbin: This issue has been fixed.

Last login: This is crucial for managing inactive users and overall system maintenance. I believe the user search options should be improved, adding filters for the last login.
Comment by Zhang Huangbin: This issue has been fixed.

Additional suggestions for improvement
-The "blacklist" column should have a black color for better visual distinction.
-Add an option to prevent "Domain Administrators" from enabling 2FA for users. Comment by Zhang Huangbin: 2FA is now available for admin and end users.
-Include a checkbox in the web interface for selecting standard DNSBL lists instead of requiring manual configuration.

Final thoughts
Overall, kudos to the developers for an excellent update! iRedMail EE is on the right path to becoming one of the best mail server solutions for Linux.

A big thank you to Zhang for always being there to assist, whether through the forum or support tickets!

It's important that we share our experiences with installation and migration so that other users can gain insight into potential issues and make the process easier and more predictable for themselves. The more we share, the more we help each other avoid obstacles and improve the overall experience.

Thank you for working on this! I really appreciate the effort to implement this feature.

I just want to emphasize once again that this is extremely important, as it would make server migration and disaster recovery much faster and easier. Having a simple export/import option via the web interface would save a lot of time and reduce the complexity of the process.

Great! For me, it's crucial to see the mailbox size of users, and if quotas are enabled, it should also be possible to see how much space is used.

This would greatly help in managing storage and identifying users who are reaching their limits.

I think inactive users should be visible per domain, so that the domain administrator can see which users are inactive within their domain.

The global administrator already has access to all domains, so they naturally have a complete overview. This way, both domain and global administrators can efficiently manage inactive users within their respective scopes.

Red is a danger but black is a black

I hope that in one of the upcoming versions, users will be able to enable 2FA for themselves through the User Self-Service Panel. This would give users more control over their security settings while reducing the administrative workload.
Comment by Zhang Huangbin: 2FA is now available in EE for admin and end users.

Would this be a planned feature in future updates?

Great, thank you

As IT professionals, we understand that reinstalling a new operating system is often the fastest and easiest solution in many scenarios. However, for this process to be efficient, we need the ability to export and import configurations, user data, databases, and other essential settings through the web interface. This would ensure a seamless migration and minimal downtime, allowing for quick recovery and system reconfiguration without extensive manual intervention.

After reading the thread and seeing someone else had issues with quarantine I just decided to press the "Delete All" button and that seems to have cured the problem. A message has been quarantined and it has sender/recipient fields and it shows up in the user context.

Seems to only be an issue with spam moved from the old platform to the new?

When did these emails get quarantined? Was it before migrated to EE? If yes, then it's normal, because EE doesn't update sql records of existing quarantined emails (to avoid performance issue if it contains too many records).

You can fix it manually with MySQL commands below:

UPDATE msgs SET sender_mail=(SELECT email_raw FROM maddr WHERE id=sid LIMIT 1);
UPDATE msgs SET sender_domain=(SELECT substring_index(email_raw,"@",-1) FROM maddr WHERE id=sid LIMIT 1);
UPDATE msgs INNER JOIN msgrcpt ON msgs.mail_id = msgrcpt.mail_id SET msgs.rid = msgrcpt.rid WHERE msgs.mail_id = msgrcpt.mail_id;
UPDATE msgs SET rcpt_mail=(SELECT email_raw FROM maddr WHERE id=rid LIMIT 1);
UPDATE msgs SET rcpt_domain=(SELECT SUBSTRING_INDEX(email_raw,"@",-1) FROM maddr WHERE id=rid LIMIT 1);

I noticed that the settings for "SMTP Account For Notifications" and "Custom Branding" are cleared when certain other panels are saved. For example "Domain Ownership Verification" will clear those to panels.

As another data point when you submit most panels the page does not change but you just get the "Updated!" indication at the top. All panels that cause the page to be refreshed seem to clear the SMTP and Branding panels.