Can receive emails but unable to send emails in Windows Mail

Discussion in 'Windows Vista Mail' started by Sarah, Jun 30, 2009.

  1. Sarah

    Sarah Guest

    Hi, I hope someone may be able to help.
    I have been setting up mobile broadband (02) and anti virus software
    (Mcafee) today on my laptop which is fine except for my email.
    I can receive emails with no problem but I am unable to send emails. This is
    the error message that I get:

    An unknown error has occurred. Subject 'test', Account: '',
    Server: '', Protocol: SMTP, Server Response: '421 connection refused from []',
    Port: 25, Secure(SSL): No, Server Error: 421, Error Number: 0x800CCC67

    I don't know whether it is something to do with the virus
    protection/firewall, something to do with the email settings (which I have
    checked) or maybe something to do with the mobile broadband or something
    else. I have tried sending email with temporarily switching off the email
    virus checker, etc but this didn't work either.
    I hope someone can help if possible. Hope I've given enough info.
    Sarah, Jun 30, 2009
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  2. PA Bear [MS MVP], Jun 30, 2009
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  3. "Unexpected" termination is usually caused by interference from an
    antivirus program. Which antivirus are you running?
    As a minimum, email scanning in the antivirus should be turned off,
    although that may not be sufficient to eliminate all bad effects.
    In a worst case scenario, your antivirus may need to be uninstalled.

    Email scanning in any antivirus should be disabled, for reasons
    explained here:

    If no improvement after disabling email scanning, consider upgrading
    to Windows Live Mail, because it is less prone to suffering bad effects
    from overly intrusive antivirus programs:
    Gary VanderMolen, Jun 30, 2009
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