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Tag: FBLs

Monitoring Your Mail Stream

One of the most important things for any mail sender to do is monitor their mail stream. There are a number of things that every mailer should pay attention to.  Some are things to monitor during delivery, some are things to monitor after delivery. All of these things tell senders important information about how their […]

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Earthlink opens up FBL

Earlier this week I was at MAAWG and one of the Earthlink postmaster folks stopped me to tell me that Earthlink was now accepting non-ISP applications to their Feedback Loop. In order to apply for the Earthlink FBL send an email to fblrequest@abuse.earthlink.net with the IP addresses and the FBL email address.

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How difficult is it to get on whitelists?

Today’s question comes from Leslie J. Just how difficult is it for a small business that runs a highly compliant mailing system to find their way onto whitelists at the big freemail/spam filter providers? It seems utterly impossible meaning man hours are completely wasted messing around with subjects and content when if the same business sends the […]

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Dealing with complaints

There are a lot of people who abuse online services and use online services to abuse and harass other people. But handling complaints and handling the abuse are often afterthoughts for many new companies. They don’t think about how to accept and process complaints until they show up. Nor do they think about how bad […]

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What’s the best ESP?

I often get clients and potential clients asking me to tell them what the absolute best ESP is. “You’re an expert in the field, which ESP will give me the best inbox delivery?” The thing is, there isn’t an answer to that question. ESPs have expertise in sending large amounts of mail.  All have staff […]

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New FBLs

There are two new FBLs in production. Synacor and Fastmail.fm. I’ll be updating the Wiki and FBL page today.

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Be on the lookout

I’m hearing more rumors of ESPs seeing customer accounts being compromised, similar to what happened with The Children’s Place. Experian CheetahMail identified an isolated incident in which someone used a valid client user ID and password to gain access to the client’s email account and transmit an unauthorized and unlawful email. To recipients, the email […]

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I don’t have a “this is spam” button

Here at Word to the Wise we have some unique requirements for mail. For instance, I need to be able to receive examples of emails that are being blocked elsewhere in order to do my job. This means not only do we not outsource mail to someone else, we also run limited spam filtering on […]

4 Comments
  • HE.net DNS problems

    Hurricane Electric had a significant outage of their authoritative DNS servers this morning, causing them to return valid responses with no results for all(?) queries. This will have caused delivery problems for any mail going to domains using HE.net DNS - which will include some of their colocation customers, as well as users of their free services - but also will have caused reverse DNS to fail for most servers hosted by Hurricane Electric worldwide, so if any of your mail is being sent from HE hosted machines you may have seen problems. (We're HE customers so we noticed. Still happy with them as a vendor.)No Comments


  • 65.0.0.0/8 DNS issues

    If you're sending email from any address beginning with a 65 - in 65.0.0.0/8 - it's possible you'll see some delivery problems. Something appears to be broken with dnssec signatures for the reverse DNS zone, leading queries for reverse DNS to fail for anyone using a dnssec aware DNS resolver (which is almost everyone).1 Comment


  • Our green bar certificate is going away

    Later today we'll be switching from an Extended Validation ("green bar") SSL certificate to a Domain Validation certificate. This isn't exactly a planned change but I'm waiting for responses from Comodo before I go into it too much. I'll share some more details next week.3 Comments


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