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08-29-2007, 07:18 AM #1Junior Guru
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Not blacklisted but mails being rejected
I've had problem with the VPS getting blacklisted alot lately.
Anyway, I think the problems resolved now and we've not been blacklisted for over 2 days, yet there still seems to be alot of e-mail servers rejecting mails from the server due to blacklisting.
Is there anything I can do?
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08-29-2007, 08:00 AM #2Web Hosting Evangelist
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08-29-2007, 10:34 AM #3Junior Guru
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08-29-2007, 10:42 AM #4Owner of the net for a day
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is it blacklisting or greylisting?
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08-29-2007, 11:13 AM #5Web Hosting Master
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RACK911 Labs | Penetration Testing | https://www.RACK911Labs.ca
www.HostingSecList.com - Security Notices for the Hosting Community.
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08-29-2007, 11:34 AM #6Junior Guru
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One of them was CBL, but I had us removed from that a few days ago, and we've not been added since.
There was another blacklist we got added too which gave us evidence, I forwarded that evidence onto my VPS provider who seems to have resolved the spam issue.
Although no spam is being sent out, and we're no longer blacklisted, theres still a fair few people we can't send mails to, Yahoo is one of them.
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08-29-2007, 11:39 AM #7Web Hosting Master
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Yahoo! does a lot of greylisting, have you checked the mail logs to see what the exact "error" message is?
It should say something like:
2007-08-29 05:00:01 1I3pr6-0001Oo-Mu SMTP error from remote mail server after end of data: host f.mx.mail.yahoo.com [68.142.202.247]: 451 Message temporarily deferred - [160]
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08-29-2007, 12:13 PM #8Web Hosting Evangelist
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08-29-2007, 12:55 PM #9Web Hosting Master
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08-29-2007, 01:04 PM #10WHT Addict
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...and they give you a link to a page that doesn't explain WHY you're deferred.
Yahoo and Hotmail don't "play well with others" so I've taken the initiative to specifically ban their e-mail addresses on all of our services. Perhaps everyone should consider it too since your users have better alternatives.
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08-29-2007, 01:37 PM #11Junior Guru
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The error from yahoo is;
SMTP error from remote mail server after initial connection:
host mx1.mail.ukl.yahoo.com [195.50.106.7]: 553 Mail from ??.???.??.? not allowed - [10]
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08-29-2007, 01:38 PM #12Web Hosting Master
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08-29-2007, 01:44 PM #13Web Hosting Master
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Yeah, you're definitely blocked on their end.
If you're positive you're no longer on any blacklists, have an open relay and your DNS is setup correctly, follow the link below to have them retest your IP:
http://help.yahoo.com/fast/help/us/mail/cgi_retest
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08-29-2007, 05:36 PM #14Junior Guru
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08-29-2007, 05:48 PM #15Web Hosting Master
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08-29-2007, 06:08 PM #16Web Hosting Evangelist
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Pat_H, nobody was refering to common rbls that can block domain names. There are a lot of rbls that block domain names also, instead of ip addresses and also e-mails that contain links to domain names. Anyway looks like it's a yahoo problem so it's not related to rbl
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08-30-2007, 02:33 AM #17Junior Guru
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It's more than just yahoo, it's also Hotmail, I've contact them both and hopefully get removed from their blacklists.
It also seems to be other ISP's as well, so I suppose I'll also have to contact them directly.
I think this is really stupid though, we're not on a blacklist yet I'm having to contact anyone we cant send mails to to get removed from their own blacklist...right pain in the backside.
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08-30-2007, 12:38 PM #18WHT Addict
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I have SPF since it was very easy to set up. SenderID and DomainKeys are not and are also complete failures considering I don't get any less spam on my Hotmail/Yahoo accounts than I did before.
I looked at the page they give me (http://help.yahoo.com/l/us/yahoo/mai.../abuse-60.html) and the form they ask me to fill out and both seem like a waste of time. My e-mail servers are locked down and my IP addresses aren't on any RBLs. Whatever their reasoning is for blocking my mail, it's faulty.