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Password retaintion and Updates
#11
please confirm your settings with your provider.
In this case, the "Invalid Sender domain" means that your provider (Virgin) does not accept that account. Confirm that you still have active subscription with Virgin.
The smtp settings can be found here:
https://community.virginmedia.com/t5/Hel...-p/3369477
Rafael
Administrator
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#12
I tried those settings and as shown below I get the same error message. I should also add that I had Virgin Tech remote my computer to try fix the issue and that didnt work either

"An unknown error has occurred. Subject 'Testing ', Account: 'TLS', Server: 'smtp.virginmedia.com', Protocol: SMTP, Server Response: '550 5.7.0 Sender Domain Invalid (VM424) lEWHfWStfRilQlEWHfcjMU', Port: 465, Secure(SSL): Yes, Server Error: 550, Error Number: 0x800CCC69"
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#13
please try it with another email client (like thunderbird) just for testing.
So we can know if the issue is on server side or on client (outlook express)
Rafael
Administrator
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#14
Quite obviously, your mail provider does not allow you to send using "from" email address they don't know. You have to send from the email with the domain they know. This is standard anti-spam measure. If you want to send using the email associated with your own website, you have to use mail server at your website. All website hosting providers give you mail account, so use that.
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