dovecot: pop3-login: Disconnected (tried to use disallowed plaintext auth)

I have just installed Virtualmin on Centos 7.6 I am stuck-up with Dovecot POP3 Server Facing an error

dovecot: pop3-login: Disconnected (tried to use disallowed plaintext auth)

I have googled for the solution but couldn't find any

Any Suggestion
Regards Rizwan

 

I found this
https://www.virtualmin.com/node/36631
using Internet Search Engines with

Code:

virtualmin dovecot: pop3-login: Disconnected (tried to use disallowed plaintext auth)

PS
Why use Virtualmin when you could use ISPConfig?

 

I have seen this but this doesn't work
My conf file already has this included

 

Has what included? That thread outlines three different ways for solving the problem. Did you examine them all?
That search finds several promising looking discussion thread, do any of them help at all?

 

Well I have read the thread.
The two of the three suggestions in the thread are for mail client.
In-fact my server is web hosting server, It is supposed to work as using plain text auth.

Regads
Rizwan

 

So you want to allow plain text authorization?
https://doc.dovecot.org/configuration_manual/quick_configuration/#ssl-and-plaintext-authentication

 

Thanks Taleman
This worked

Rizwan