IMAP from localhost (Squirrelmail) works, IMAP from remote (Outlook) does not authenticate

[Robert L Mathews]

On 12/24/20 3:56 PM, Wayne Carrel wrote:
> From maillog:
> 
> (Successful login from localhost via squirrel mail)
> 
> Dec 24 16:14:19 mail dovecot: imap-login: Login: user=<terry>,
> method=PLAIN, rip=::1, lip=::1, mpid=2279, secured,
> session=<CJKj9z23kN0AAAAAAAAAAAAAAAAAAAAB>
> 
> (Unsuccessful login from remote ip via Outlook)
> 
> Dec 24 16:13:53 mail dovecot: imap-login: Disconnected (auth failed, 1
> attempts in 4 secs): user=<terry at mydomainname.com>, method=PLAIN,
> rip=75.xx.xx.xx, lip=198.xx.xx.xx, session=<1s/i9T23yspLRsWA>

The username is different. Squirrelmail is using username "terry";
Outlook is using "terry at mydomainname.com".

-- 
Robert L Mathews, Tiger Technologies, http://www.tigertech.net/