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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical RE: Hotmail blackholing certain IP ranges ?
In addition to aligning A and PTR records with the outgoing banner try the following: -Use the dnsstuff.com "Spam Database Lookup" tool to check the server's IP against a ton of RBLs. If listed, get it delisted -Ensure that the domain you are sending from has an SPF record allowing that server to send -If your SMTP server support domain keys, set that up -Ensure that the sending domain has an MX record. This MX record should point back to a server that will respond with a banner having a matching domain name. Also, it would not hurt if it had an A record pointing somewhere (I know some email servers will do loopback checks to ensure that the sending domain actually has a email and/or webserver). -Check the range to see if it is on any bogon list (as we all know, some ISPs and bogon list operators tend not to update their block lists with the current IP assignments). -Lastly, change the IP of the email server. Don't move it to a new range, just one IP over (incase it got itself on some internal hotmail blacklist). Hope that helps, Adam Stasiniewicz -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Jeroen Wunnink Sent: Thursday, April 26, 2007 5:41 AM To: [email protected] Subject: Re: Hotmail blackholing certain IP ranges ? Yeah but that's not really an option our customer wants to hear ;-) He has several valid mailinglists which he moved to a new server, and it happens to have quite some hotmail addresses on it. At 11:58 26-4-2007, you wrote: >I would advise against using Hotmail anyway ;-) Of course the >problem is that Hotmail never seem to get the flack from customers, >it always ends up at the ISP (i.e. us) because of course it CAN'T be >Hotmail's fault.. > >-- >Leigh Met vriendelijke groet, Jeroen Wunnink, EasyHosting B.V. Systeembeheerder [email protected] telefoon:+31 (035) 6285455 Postbus 48 fax: +31 (035) 6838242 3755 ZG Eemnes http://www.easyhosting.nl http://www.easycolocate.nl Attachment:
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