12. February 2019 · Write a comment · Categories: Uncategorized


I am unable to send and receive mails through windows live essentials app from past  2 months.

System configuration:

OS :Windows 7 SP1.

Domain mail: Comcast.net

App version: 15.4.3538.0

Error: Server Error: 0x800CCC90
Server Response: -ERR [AUTH] Plaintext authentication disallowed on non-secure (SSL/TLS) connections.
Server: 'mail.comcast.net'
Windows Live Mail Error ID: 0x800CCC91
Protocol: POP3
Port: 110
Secure(SSL): No

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