Hello,
with 9.x changes, I noticed a weird behaviour for adding aliases.
I have multiple domains set up in "Email -> Domains", e.g.
In "Email -> Mailboxes", I have multiple mailboxes set up, one being e.g.
When editing the mailbox and using "add another alias" it automatically choses a domain.com domain, despite editing and adding an alias for a domain.org e-mail address. This is a different and odd behaviour compared to 8.x.
Also, for mailbox with countless of aliases, it requires a good amount of scrolling and looking for the "..." to "Edit" the actual mailbox. A visual/workflow improvement would be great.