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i have trouble e-mailing anyone even myself.

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An unknown error has occurred. Subject 'friends & family', Account: 'aol.com', Server: 'aol.com', Protocol: SMTP, Server Response: '421 Cannot connect to SMTP server 64.12.89.186 (64.12.89.186:25), connect timeout', Port: 25, Secure(SSL): No, Server Error: 421, Error Number: 0x800CCC67'bold text'bold text

An unknown error has occurred. Subject 'friends & family', Account: 'aol.com', Server: 'aol.com', Protocol: SMTP, Server Response: '421 Cannot connect to SMTP server 64.12.89.186 (64.12.89.186:25), connect timeout', Port: 25, Secure(SSL): No, Server Error: 421, Error Number: 0x800CCC67'''bold text''''''bold text'''

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Firefox doesn't do email, it's a web browser.

If you are using Firefox to access web mail, you need to seek support from your service provider or a forum for that service.

If your problem is with Thunderbird, see this forum for support. http://www.mozillamessaging.com/en-US/support/ or this one http://forums.mozillazine.org/viewforum.php?f=39