Why do I have mail waiting to be sent to remote domains that clearly don't exist on the Internet?

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  4. Why do I have mail waiting to be sent to remote domains that clearly don't exist on the Internet?

Answer

This simply indicates that a user who has the right to relay mail through your server has sent mail to one of those domains. The most likely reason for this is that the user has simply mis-spelled the domain name when creating the message.

Here are the most obvious reasons for the build up of mail held in the "GordanoOut" directory

  • The domain name has been incorrectly spelt
    A user may innocently misspell the domain name portion of an intended recipient. For example, you may see a queue for the domain hotmaill.com, which could indicate that a user on your server sent an email message to auser@hotmaill.com incorrectly spelling the domain portion of the address.

    The identity checking options available as part of GMS Anti-Spam will allow such mis addressed mail to be rejected within the SMTP protocol so it never arrives on your server in the first place.

  • Anti Spam configuration
    There is a configuration checkbox found under Anti Spam > Content > Return Message to sender, if enabled, this means that although a message found to have "restricted content" is rejected before
    entering a users mailbox, the system will also generate a return message to the sender.

    If the address of the sender is fake (a technique commonly used by SPAM Software), or indeed incorrectly spelt, the message being returned will automatically go to this fake address which is a similar situation to that outlined above.

  • You are an open relay
    Gordano software is by default set to disallow relay from non local users, therefore either you must have deliberately enabled relay or the sender has somehow obtained the details of one of your local accounts and is abusing this information in order to relay the mail through your server.

    See Also:

    Keywords:anti spam external resolve domain out

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