sending problem error 550

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Joined: Fri Dec 18, 2009 11:22 pm

sending problem error 550

Postby doots33 » Fri Dec 18, 2009 11:28 pm

Your IncrediMail Version: incredimail 2.0
Your Internet Browser Type: Internet Explorer 7
Your Operation System: Windows Vista

What have you done before the problem occurred?
I downloaded incredimail

If you receive any error message, please quote it precisely:
550 5.1.1 unknown or illegal alias:

Please provide a full description of the problem:
When I send the mail this error comes up:550 5.1.1 unknown or illegal alias:
what can I do to correct it. I have norton 2009

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Re: sending problem error 550

Postby IncrediModerator » Sun Dec 20, 2009 12:52 pm

This problem may be caused by several different reasons:

  • Some Internet Server Providers (ISP's) do not allow their users to send email, unless both the ISP and the outgoing mail server (SMTP) belong to the same company.

    For example:

    If you are connected to the Internet by a company called 'Example', you need to verify that your outgoing mail server address is the address of their server, for instance:''.

  • If your server requires authentication, you have to configure IncrediMail accordingly:

    In the IncrediMail main window, click the 'Tools' menu and select 'Accounts'. Select your email account and click 'Properties'. Select the 'Servers' tab and select the 'My server requires authentication' option.

If you are not sure of your email account requires authentication, please contact your email account provider and ask them.
Best regards,

IncrediMail Customer Support

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