Spam Testing
If you need to Check an email for it's SPAM score, try this online test tool:
http://spamcheck.sitesell.com/
- send email with title Test to spamcheck-faul@sitesell.net to get a report on that email.
or
OR: http://www.checkmyemail.co.za
OR: http://www.contactology.com
would love - http://litmus.com
Things to Try
If you encounter issues with Yahoo (email not being delivered or even spammed) try the following suggestions:
check configuration of DKIM and SPF using:
http://www.myiptest.com/staticpages/index.php/DomainKeys-DKIM-SPF-Validator-test
Here's some tips to get this moving forward:
-
Determine how much email you are sending to Yahoo on a daily/weekly basis
-
Examine some of the rejected emails. See if they are indeed spam.
-
Get your sender score: https://www.senderscore.org/ (sign up for more detailed results)
-
Forwarded emails? Are your users forwarding emails to Yahoo?
-
Setup DKIM (you've already done this great)
-
Join the compliant feedback loop http://help.yahoo.com/l/au/yahoo7/mail/postmaster/postmaster-30.html
I am assuming you have ruled out the following:
-
Open Relay
-
Insecure web script being used by hackers/spammers
-
Client sending out large newsletters
Forwarded Emails
Just a special note about this as many people don't realize this can get you blocked.
If your client forwards and email to Yahoo (or AOL, Gmail, MSN etc) and then the user flags the email as spam at their ISP:
Your server's sender reputation is damaged not the original sender.
Since as much as 80% of email is spam, a large percentage of the forwarded emails could be spam. Even at low volumes such a large percentage will get you blocked.
See if any Email Gets Through
You will also want to scan your logs over several days to see if any email gets through. Sometimes a block will be lifted but if you are still sending a high amount of spam, you will get blocked.
If you can update your question with some details on the mail stats, forwarding and other items, perhaps I can provide some more assistance.
As a last resort, you can change your server's IP address, but do this only after you clean up any items that could be triggering their policies.
More information found at:
Setting up SPF
SPF is easy to set up. It just involves adding a DNS record. This should be done for all domains that send email from a webserver. For example if we send mail from our webserver, that domain needs the DNS record added.
The DNS record is a TXT record with a value like "v=spf1 ip4:210.48.35.20 ?all". This is the value for sending mail from versa.
http://old.openspf.org/wizard.html
SPF tester:
http://www.kitterman.com/spf/validate.html
Setting up DKIM
Leave a Comment
Comments