MX Guarddog Support


If you are no longer able to receive mail from MX Guarddog as of October 31, 2014 - you must have a block that controls who can send you mail.

Please ensure you are allowing our ip addresses to deliver mail to your server.

Initial announcements of the IP changes were made in July 2014 via our website, follow-ups were done in September and October through our newsletter. Additional attempts to contact postmasters were done with pop-up alerts on our website and announcements via quarantine reports from October 15, 2014...

If you missed our attempts to contact you and there are blocks in place at your server, your mail is being held on our servers. Once you allow access to our IP addresses you mail will be delivered automatically, there is no need to contact us to have your mail released.

We generally have only a few categories of people looking for tech support. Please read the following support types to find your best option for support.

End User Support

If you are an end user (your email is filtered by MX Guarddog), and you are having any issues with SPAM filtering, whitelisting, accessing your account, or questions why a specific email may have been placed into quarantine please contact your email administrator. For security purposes, MX Guarddog is only able to discuss support issues with the domain administrator for technical related issues.

Postmaster / Domain Admin Support

If you are the domain administrator and need assistance with configuration, or issues related to service please contact the MX Guarddog Postmaster at

If you contact us from an email address that does not work, you should not expect a reply...

Unwanted SPAM Received

If your email is protected by MX Guarddog, and a message has slipped past our SPAM protection systems please send us the email. By analyzing email that is SPAM, but has not been detected as such we are able to further enhance our systems. Messages can be forwarded to, please ensure you send the SPAM message as an attachment as only when it is sent as an attachment does it retain all the routing information we need to trace the email.

We Are Blocking Your Email

If you are attempting to send a message to one of our clients, and it is being rejected by the MX Guarddog servers in error please contact the MX Guarddog Postmaster via email at

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