Welcome to Matts Admin tips. This blog is full of little fixes, tutorials and work-arounds to those anoying problems that a Systems Administrator might face. If you find something that you have found useful please leave me a comment - I appreciate knowing that I've helped! Also, feel free to leave a comment if my tips or ideas don't work in your environment... I monitor them closely and would be happy to help! Matt

Whitelist Request Forms/remove from RBL

Posted August 6th, 2008 by Matt Shadbolt

AOL: Request whitelist – http://postmaster.info.aol.com/whitelist/whitelist_guides.html Remove from RBL – http://postmaster.info.aol.com/waters/sa_form.html Hotmail: Remove from RBL – http://ipremoval.sms.symantec.com/lookup/ Yahoo!: Request whitelist – http://help.yahoo.com/l/us/yahoo/mail/postmaster/postmaster_wl.html?from_url=http://help.yahoo.com/l/us/yahoo/mail/postmaster/index.html Remove from RBL – http://help.yahoo.com/l/us/yahoo/mail/postmaster/defer.html?from_url=http://help.yahoo.com/l/us/yahoo/mail/postmaster/index.html For all other smaller mail providers you can use this free lookup tool for the major RBL services http://www.mxtoolbox.com/blacklists.aspx

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Locking down outbound SMTP

Posted July 30th, 2008 by Matt Shadbolt

I’ve recently had issues with my companies IP address being blacklisted by a bunch of RBL’s (Realtime Block Lists) blocking mail delivery from our server on the basis that we are sending SPAM. We of course didn’t realize there was a rouge client on our network sending bulk unsolicited emails. After weeding out the client [...]

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