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Old 08-22-2008, 09:53 AM   #1
terataz
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Registered: Aug 2008
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Outgoing email improperly marked as spam by yahoo/msn


We run our own web server, which act as well as a mailserver, usin Qmail.
We send a low volume of email per month, mainly to clients.
We keep getting marked as spam in yahoo/msn/live and possibly some more (but not from all).

I've already checked
  • Subject or body of message: makes no difference what words are present
  • PTR records: they are correct
  • SPF records: Tested with online tools, valid
  • DomainKeys Records: tested with online tools, valid
  • MIME type : HTML or text makes no difference
  • Blacklists: checked , our IP is not present
  • Openrelay: checked, IP not present
  • Spamassassin: Checked, give our mails a low (~0) score
  • Email Header: looks ok to me, but would be happy to submit it to someone in PV for further examination.
Our ISP has no idea of what is happening.
This is a major problem for us.
I have read plenty of tutorial, forums, sites and still can not get hold of the situation.

As i said i will be happy to give more detail infos if needed.
Any suggestion will be greatly appreciated.
Thanks
 
Old 08-22-2008, 09:59 AM   #2
TB0ne
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Quote:
Originally Posted by terataz View Post
We run our own web server, which act as well as a mailserver, usin Qmail.
We send a low volume of email per month, mainly to clients.
We keep getting marked as spam in yahoo/msn/live and possibly some more (but not from all).

Our ISP has no idea of what is happening.
This is a major problem for us.
I have read plenty of tutorial, forums, sites and still can not get hold of the situation.

As i said i will be happy to give more detail infos if needed.
Any suggestion will be greatly appreciated.
Have you tried to contact Yahoo/MSN/etc., and tell them what's up? They're probably blacklisting your address/domain, which is why you're ending up on their spam list. Your ISP wouldn't have any idea about that...they're just passing it along to the mailservers, further downstream.
 
Old 08-22-2008, 10:05 AM   #3
terataz
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Quote:
Originally Posted by TB0ne View Post
Have you tried to contact Yahoo/MSN/etc., and tell them what's up? They're probably blacklisting your address/domain, which is why you're ending up on their spam list. Your ISP wouldn't have any idea about that...they're just passing it along to the mailservers, further downstream.
Tried to contact Yahoo.
48 hours are already passed but no answer.
I doubt the will respond at all .

What make me suspicious about the blacklisting theory is that is strange that both of yahoo and msn will blacklist my mail because user press "Mark as Spam" . I can see no other reason to get blacklisted.
 
Old 08-22-2008, 10:32 AM   #4
TB0ne
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Quote:
Originally Posted by terataz View Post
Tried to contact Yahoo.
48 hours are already passed but no answer.
I doubt the will respond at all .

What make me suspicious about the blacklisting theory is that is strange that both of yahoo and msn will blacklist my mail because user press "Mark as Spam" . I can see no other reason to get blacklisted.
Not necessarily. Granted, that can be one cause, but another would be if you sent 50 messages to different Yahoo accounts, at the same time, from the same address. The spam filters might view that as being suspicious, and flag it.
 
Old 08-22-2008, 10:36 AM   #5
trickykid
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Also Yahoo is huge on domain keys. Unless you're a big ISP or player, with credited domain name, Gmail and Yahoo love to send the little guys to the SPAM box.

And yes, if you send to a lot of users in a specific amount of time, they're systems will start blocking you and marking as spam to deter against the real spammers. If you're sending out bulk emails, try to limit the amount of messages you inject to their servers at a time.

And usually when a user marks as spam, that's on a per user basis really for their own preferences.
 
Old 08-22-2008, 10:59 AM   #6
terataz
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Quote:
Originally Posted by TB0ne View Post
Not necessarily. Granted, that can be one cause, but another would be if you sent 50 messages to different Yahoo accounts, at the same time, from the same address. The spam filters might view that as being suspicious, and flag it.
I'm ok with that, but here we are talking of 1 or 2 mail per day to different yahoo/msn users. That should not be flagged...
 
Old 08-22-2008, 11:09 AM   #7
terataz
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Registered: Aug 2008
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Quote:
Originally Posted by trickykid View Post
Also Yahoo is huge on domain keys. Unless you're a big ISP or player, with credited domain name, Gmail and Yahoo love to send the little guys to the SPAM box.
Our mail seem to go Gmail Inbox ok.

Yahoo seems to suggest to use DomainKeys, which makes me thing that, if anything, Domainkeys should do good to our email header.
So I've set it up on our DNS and server,done multiple online tests and passed them all.

In my personal yahoo inbox I get many mail from spammers.
They seems to come from small/medium companies.
Some of them use Domainkeys, some don't.
Some of them even use (very)suspicious keywords in subject/body.

Most of them manage to get straight to my inbox.
I really wonder why we can't reach that, being a proper, legitimate company with legitimate content and proper authentication (DomainKeys,SPF,PTR...).
 
  


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