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system fails to send out e-mails

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ira.fuller
ira.fuller
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My computer suddenly stop sending out emails. I have COMODO security and Geek Buddy Service and they have worked over 7 hours and cannot correct it. They are telling me the problem is with Thunderbird. I can receive e-mails but can't send out. Can you advise what the problem can be?

My computer suddenly stop sending out emails. I have COMODO security and Geek Buddy Service and they have worked over 7 hours and cannot correct it. They are telling me the problem is with Thunderbird. I can receive e-mails but can't send out. Can you advise what the problem can be?

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christ1
christ1
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I can receive e-mails but can't send out.

What prevents you from sending messages? Is there any error message?

What is your anti-virus software?

Also see https://support.mozilla.org/kb/cannot-send-messages