Windows Live Mail – Stopped sending outgoing messages as of 12.3.2018

I have used the same e-mails and outgoing server settings for several years.

As of last night Windows live mail will no longer send e-mails. The acct are set up on different servers and different ports, and have worked for years. The same e-mails are set up and configured to my iPhone and work with no problem.

Below are the error messages:

An unknown error has occurred.

Server: ''

Windows Live Mail Error ID: 0x8007007A

Protocol: SMTP

Port: 465

Secure(SSL): Yes


The host '' could not be found. Please verify that you have entered the server name correctly.

Subject 'Re: Sublimes Page Update ('

Server: ''

Windows Live Mail Error ID: 0x800CCC0D

Protocol: SMTP

Port: 587

Secure(SSL): Yes

Socket Error: 11004

I'll reiterate that these both worked without issue for several years, no changes have been made, and both stopped working at the same time yesterday.