SWAKS is a general purpose testing tool for SMTP. For basic SMTP testing it’s a more convenient, scriptable alternative to running a transaction by hand, but it also lets you test things that are difficult to do manually, such as authentication or TLS encryption. It’s a perl script that installs fairly easily on OS X […]
DMARC is a way for a domain owner to say “If you see this domain in a From: header and it’s not been sent straight from us, please don’t deliver the mail”. If a domain is only used for bulk and transactional mail, it can mitigate a subset of phishing attacks without causing too many […]
There have been a number of comments on my post about Hotmail moving to SPF authentication having to do with troubleshooting authentication failures. I have been helping clients troubleshoot these issues, and am able to take on new clients to solve authentication problems. Contact me for more information. Of course, many of these issues can […]
A couple nifty new delivery tools were published over the weekend. Mickey published Bounce P.I. where senders can paste in an error message or bounce and it will tell you what filter generated it. If the rejection is unrecognized, it will flag the message internally and it will be researched to see if the filter […]
AOL announced today that they are phasing out non-ARF feedback loops. As of September 2, 2008, no new non-ARF feedback loops will be created and all existing non-ARF feedback loops will be converted to ARF. What is ARF? ARF stands for Abuse Reporting Format. It is a standardized format intended to make processing of automated […]
The Email Standards Project launched last week. This group is looking to lobby and encourage companies to make their email clients comply with HTML display standards. They are also identifying how different clients display email with HTML. Check out their website, and see what they’re doing. I do apologize for the light blogging recently. I […]
Sorry about the slowness, this server is the same one that is hosting thewholeinternet.wordtothewise.com and it got posted to digg today. If the traffic storm keeps up for more than a day or two we’ll make other arrangements for the blog.
A number of groups provide tools for monitoring email performance. Some of these tools are provided by ISPs, like Hotmail and AOL have postmaster webpages. Hotmail also provides things like SNDS so you can monitor what Hotmail is seeing about your network. Al has a new blacklist stats center over at DNSBL.com. Of interest is […]