Recent Posts

Troubleshooting tools

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 be solved with access to the right tools. Steve’s been working on a number of tools that may help the troubleshooting process and we’ve recently launched them on Emailstuff.org. The website itself contains a number of DNS and data related tools we use for investigations and thought we’d share with the public at large.
One of the really useful tools is the SPF record expander. Plug in any domain, like google.com, and see what IP addresses they authorize to send mail.

TWSD: Adapt to filters

This morning the new Yahoo! CEO posted about changes to Yahoo! mail. I logged into one of my Yahoo accounts to check and see if I had access to the new Yahoo! mail client yet. I don’t, but I did notice that spammers have adapted to the new Yahoo model of disabling filters in the mail folder. Most of the mail in my inbox has, at the very top of the message “Click not spam to enable links!”
My favorite has to be the animated gif of how to click “not spam.”
Spammers spend so much time and energy compensating for filters, hopping IP addresses, rotating through domains, and specially creating mail for different ISPs. I have to wonder, though, if they would waste less time by sending opt-in mail.

Confirming addresses for transactional mail

A colleague was asking about confirming transactional mail today. It seems a couple of big retailers got SBLed today for sending receipts to spamtraps. I talked a few weeks ago about why it’s important to let people unsubscribe from transactional email, and many of those same things apply to confirming receipts.

Fun with Subject lines

Courtesy of Think Geek (who have some of the best use of symbols in subject lines I’ve seen).

Hotmail moves to SPF authentication

Hotmail has recently stopped using Sender ID for email authentication and switched to authenticating with SPF. The protocol differences between SenderID and SPF were subtle and most senders who were getting a pass at Hotmail were already publishing SPF records.
From an email in my inbox from September:

Data, data, elections and data

One of the interesting stories coming out of the recent US Presidential election is how much data the Obama Campaign collected about voters, volunteers and donors. Today Politico talks about how valuable that data is, and how many Democrats want to get their hands on it.

Confirmation Fails

Yesterday I talked about registration confirmations. Today I’m going to talk about a couple recent experiences with websites and their registration failures.
The first experience was with Yelp. One of my readers decided I needed a Yelp account and created one using my laura-questions email address. Yelp understands that people will be jerks and so sent me an email to confirm the account.

An interesting look at best practices

Which best practice is ruining your business?

Confirming website registrations

Confirming email addresses during a website registration process is a good practice. It stops people from creating fake accounts, abusing resources and using that site as a mechanism for harassment. But simply sending out a confirmation mail is not sufficient to prevent problems, particularly when everything about the process assumes that unconfirmed registrations are actually valid and not problem accounts.
I’ve had a couple recent experiences with companies attempting to use email confirmation, but failing pretty miserably. In each case a website set up a process where a user could register an account on the site. Both sites required confirmation of the registration email addresses as part of the process. But in each case there were some major failures that result in non-customers getting email.
Tomorrow I’ll talk about those two specific cases. I’ll also provide specific suggestions on how not to fall into the same trap and actually send opt-in email.

What a week!

It has been quite an insane and busy week here. So I share with you what’s kept me going much of the week.