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First I made sure my DNS and MX records were set up properly:
1) Made sure my mail host was a valid A record. I originally made the mistake of setting up the host as a CNAME.
2) Made sure my MX record is set to the full host name of my mail host (which is set up as a A record)
3) Made sure I can do a reverse lookup of my mail hosts IP address. (This will be important for setting up SPF/Sender ID records)
4) Set up SPF/SenderID information as a TXT record. (http://www.zytrax.com/books/dns/ch9/spf.html)
I was able to verify everything with the DNS record was set up by using http://www.dnsstuff.com/. Making sure there were no warnings or errors before contacting support for any of the email services (such as Ouriel pointed out). If you contact any of the major email inbox services before making sure the DNS is properly configured, you will most likely be declined. I was able to contact Yahoo, MSN, and AOL to make sure I was not on their black list. I was even surprised to see that Yahoo and MSN validate the information you send then (especially the opt out functionality on your service).
Another test to do is to run a self "audit" against Spam Assassin. I sent myself an email from my web application and copied the raw message (including headers) to a text file and run it against spam assassin's command line test. All my emails had a score of 0... the lower the score the better. A score of 5 or more means that your email will most likely get filtered out by any spam filter. I've also been told that anything 3 or higher is bad too. But it's a good idea to see what may be triggering other email services from declining your email.
After I tested out my emails in spam assassin, I tried testing it out across other services. I initially was using Email Reach (http://www.emailreach.com). I think it's a great service, but it's still a young/small company. So if you find issues/bugs with their product, you will need to have patience with their customer service. It's a cheap product for what it does. It will test delivery of your email to a large list of email providers, ISPs, and even email clients. The reports are pretty comprehensive too.
I think it's best to contact the big webmails AFTER you've done all this.
I personally would have liked to gone with a solution such as Return Path, however I think for someone who's trying to do this on a modest dime (read personal income) there are a lot of things you can do to better your odds of successful delivery.
T.
I am also facing the some of the issues that you are. I totally agree with maxkalehoff, my site, like any social web 2.0 site lives and dies of email. Our emails have domain keys, spf records, sender ids, and domain stamping... we use all the feedback loops we can get on.. hotmail snds has us on green.............but we face a serious issue of throttling from them... I have been unsuccessful in getting a responce from them... Can you pls tell me how you are contacting them and how often do they respond to you.
PS - pls let me know of yahoo responces to you as well -- they always send me a generic canned responce that points me to their postmaster help pages.
Thanks
vince
This underscores that email is the ultimate social network. All social networks default to email. No social network can succeed if it doesn't also master email marketing.
Max
Is there a technology edge to doing SEO?
The report hadn't "seen" any emails from our domain so couldn't give us a score. I figured that's because we outsource our SMTP, so I tried punt4.authsmtp.com which gets 70/100. It costs $14 to send 10,000 emails/mo through authsmtp, so I'm guessing this is a cheaper way to get twitter's level of email deliverability if your volumes are low. Or am I missing stuff?
https://senderscore.org/lookup.php?lookup=www.k...
Tuyen