الجمعة، 28 مايو 2010

553 sorry, that domain isn't in my list of allowed rcpthosts

You can send/receive mails using webmail interface without having any problems.

But, customer tells that he get an error like this:

553 sorry, that domain isn't in my list of allowed rcpthosts.

Then, the problem is in the email client configuration. The mentioned error occurs if the SMTP authentication is disabled.

Solution:
Enable SMTP authentication in email client configuration.

Eg: To turn this setting on in Microsoft Outlook Express:

1. From the Tools menu, choose "Accounts." 2. Select the "Mail" tab. 3. Double-click the email account. 4. Select the "Servers" tab. 5. Check the box next to "My Server Requires Authentication." 6. Click "OK."

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