Yahoo/AOL Blacklist
Question asked by Ryan Wittenauer - June 27 at 11:57 AM
Answered
Looking for some help in the community.

We've been listed on Yahoo/AOL's blacklist, which has happened in the past.
We requested a delisting with their bulk sender list, and within a day we get delisted.

For some reason, starting Monday, with no changes that we made on our end, we were blocked.
Went through the process and were delisted yesterday, but now again today we've been listed again.

We are at our wits end, the traffic we sent over night was minimal, and mostly forwarded messages from accounts with forwards (I know it's in their 'best practices' guidelines to never auto forward, but this was never a problem in the past)

Does anyone have any guidance or contact information that can get us past the auto-response from Yahoo postmasters that we've been getting?

Thanks.

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1
John Marx Replied
We were having problems sending as we utilize Microsoft Azure and Amazon AWS. The way we got to having outbound mail work 99.99% reliable and less in junk email was to signup for Mailgun. We pay $79/month and am super happy we did.

We did use Sendgrid but around 5-10% of the emails that went through them all went into junk email which was not a positive thing in our book.

With that said Mailgun does have some setup downs but it's a one-time-only thing so we were happy about that. In less than 16 hours we had 100 domains all setup and rocking. You can read my blog I wrote about it at https://www.businessyeti.com/Blog/Details/Migrating-To-Mailgun as I like to read about the pros and cons. 
1
Linda Pagillo Replied
Hi Ryan. Have you checked to see if you have a compromised account that may be landing your server on their blacklist? Also, have you checked to see if your server is listed on any other RBLs? A good site that I like to use to check is http://multirbl.valli.org/. If you see that your server is on any of the more popular RBLs such as Sorbs, SpamCop, Spamhaus, Barracuda etc.. then you probably have a compromised account. In order to find out which one is compromised, you can use our free Declude Hijack program. Declude Hijack prevents mass email from leaving your server in the case of a compromised account. It helps to keep your server off of RBLs. You can read more about Hijack here if you wish: http://know.mailsbestfriend.com/declude_hijack--1937121164.shtml. I hope this helps. Please let me know if there is anything I can do to help you. Thanks!
Linda Pagillo
Mail's Best Friend
Email: linda.pagillo@mailsbestfriend.com
Web: www.mailsbestfriend.com
Authorized SmarterTools Reseller
Authorized Message Sniffer Reseller
 
1
Ryan Wittenauer Replied
Marked As Answer
I appreciate the information.

We use MXToolBox' service that monitors blacklists for our entire IP range, and we were not listed. I also checked 3 or so other blacklist aggregate checking websites, and we were on NONE.
We have rules in place that work well to catch compromised accounts, and it just so happens that right before this all started someone was compromised and hit our rule limit that locks an account. But they only got out under 100 or so messages before being locked down.

The block lifted early last week after a week of on and off blacklisting by Yahoo and we made some additional changes that we think helped stop this.

We think it may have come down to allowing any and all messages to forward. We changed that stop messages that gain a weight high enough to go to junk.
1
Linda Pagillo Replied
That's great news Ryan! I'm glad it is resolved!
Linda Pagillo
Mail's Best Friend
Email: linda.pagillo@mailsbestfriend.com
Web: www.mailsbestfriend.com
Authorized SmarterTools Reseller
Authorized Message Sniffer Reseller
 

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