Postfix / Dovecot Not Able to Authenticate

[dovecot at ptld.com]

> On 07-05-2021 4:59 pm, techlists at phpcoderusa.com wrote:
> 
> Jul  5 18:58:47 soho dovecot: auth: Debug: 
> passwd-file(keith at keiththewebguy.com,98.191.108.149,<wVJ55GTGvspiv2yV>): 
> lookup: user=keith at keiththewebguy.com file=/etc/dovecot/dovecot-users
> Jul  5 18:58:47 soho dovecot: auth: 
> passwd-file(keith at keiththewebguy.com,98.191.108.149,<wVJ55GTGvspiv2yV>): 
> unknown user
> 

Same thing i said on the postfix mailing list. Start here. It is telling 
you that it is not able to find user "keith at keiththewebguy.com" in the 
auth file (/etc/dovecot/dovecot-users). So either you have a typo or the 
format of the file is wrong.

The file format is very specific, its is talked about here:
https://doc.dovecot.org/configuration_manual/authentication/passwd_file/