Hello all. First time post.
I am having the strangest issue. My instance of aaPanel hosts two domains and I use Mailserver for both. I have not had any difficulties creating several mailboxes / accounts. Except for one. Which in my case is admin@mydomain2.com. I am unable to login via Webmail. I keep seeing the "Login failure" error message.
I know for a fact that the username and password is correct because I am able to create and access said account via any other mail client. I have also created admin@mydomain1.com and that account works just fine. Including via Webmail. I have deleted and recreated the account to no avail. Your time and assistance will be greatly appreciated. Thank you