Recent Posts

Holomaxx v. MSFT and Yahoo

I mentioned way back in January that Yahoo had filed a motion to dismiss the case against Holomaxx. Microsoft filed a motion to dismiss around that time, although I didn’t mention it here.
And, of course, Holomaxx filed a motion in opposition in both the Microsoft case and the Yahoo case. Nothing terribly interesting here, about what you’d expect to read.
On March 11 the judge ruled on both motions to dismiss and in both cases ruled that the case was dismissed. He did, however, give leave for the complaints to be amended in the future.
As I expected the Judge agreed that MSFT and Yahoo have protection under the CDA. First, the court made it clear that providers are allowed wide leeway in determining what is objectionable to their customers.

Letters to the abuse desk

Ben over at Mailchimp has shared some of the mail that comes into the mailchimp abuse desk. It’s a post well worth a read.
One of the things that leaped out at me during that post is that the positive emails highlight how much the Mailchimp delivery and compliance people help their users get good delivery. They’re not just saying “you can’t do that” because they’re mean or they want to make life more difficult for their users. They are saying no because what the user wants to do is a bad idea.
I also appreciated the letter from the customer who had to tell Mailchimp that management had decided to not take Mailchimp’s advice. This is something that happens to me sometimes. Clients agree with my recommendations but management decides that they’re not going to implement them. It can be difficult to watch, particularly when I then see how much that company is struggling with blocks or see them show up on some of the big spam lists. But, it’s also part and parcel of the job. Not everyone, no matter how effectively I make my cases, will take my advice.

Getting it so wrong

One of the things I notice is when vendors send me badly formatted emails. There’s one vendor of ours that gets it so wrong I find it offensive to receive their mails. Not only have they not managed to invoice or process payments correctly for months, but their billing emails come to me with one of the ugliest From: lines I’ve ever seen.
Now, I’ve seen Dave Crocker’s lectures on email address. I believe that technically this is a legal From: address. But, seriously? I’m amazed they ever get mail delivered.
“COMPANY <Firstname.Lastname”@company.com
Yes, I changed the name to protect the stupid.
I tried to reply to the email address and my mail client tells me “this does not appear to be a valid email address.” Well, no. No it doesn’t. But let’s try anyway.
And there’s the bounce. “Invalid address!!!”.
This vendor is sending out invoices with totally broken From: address. I wonder how many of their customers are not getting an actual invoice from them?
But, being the helpful person I am, I actually mailed the person and pointed out that their From: address was horribly broken and may be negatively impacting their delivery. I’m not expecting an answer, but at least I have done my good deed for the day.
As part of the deployment process of any new email system you should check to make sure the address is correct and people can reply to it. That single test “reply to mail” would have identified this problem 5 months ago and not taken one of their recipients to point it out to them.

Thank you, Fred!

I am honored and humbled to be called out as a Goddess of Email Deliverability by Fred Tabsharani in his recent deliverability.com post. He has named and lauded people I am proud to call colleagues and friends. Thank you, Fred.

SORBS Progress

A little bird tells me that GFI have resolved their primary blocking issue on SORBS problems. If all goes well I’d expect their infrastructure and policies to improve significantly over the next few months. We’ll wait and see whether the data quality begins to improve after that.

Email without filters

… or Find the False Positive.
Anyone sending a lot of email has complained about spam filters and false positives at some point. But most people haven’t run a mailbox with no spam filters in front of it in recent years, so don’t have much of a feel for what an unfiltered mailbox looks like, how important filters are and how difficult their job is.
I run no transaction level filters in front of my mailbox, just content filters that route mail to one of several inboxes or a junk folder, so if I want to I can look at what unfiltered email looks like. I took data from all mail that was sent to me yesterday, and put it in a format that really shows the problem filters face and especially the difficulty of spotting which mail in the junk folder is a false positive.
An inbox with no filters looks like this.

Running a spam filter against it, simply categorizing each email as spam (pink) or not-spam (green) looks like this.

Even with the messages categorized as spam vs not-spam it’s hard to work out which messages are important and which aren’t, let alone where the false positives might be.
If I sort the categories by hand you get this – where you can see that out of 1200 or so mails about three quarters were spam. Of the three false positives two were bulk email that I didn’t care that I didn’t receive and only one was email that I considered important.

Industry Jargon

I have a new laptop, so I’m having to teach the spellchecker some words it doesn’t know.
deliverability, unsubscription, MAAWG, DKIM, epending, ESP, smarthost, return-path …
There sure are a lot of words in the email business that outsiders might not recognize or understand.

It's Wednesday – do you know where your sales staff are?

I received an email yesterday with the subject “Please confirm your lunch reservation”. It didn’t look like a typical spam subject line, but wasn’t from anywhere I recognized.
I take a look.

Turn it all the way up to 11

I made that joke the other night and most of the folks who heard it didn’t get the reference. It made me feel just a little bit old.
Anyhow, Mickey beat me to it and posted much of what I was going to say about Ken Magill’s response to a very small quote from Neil’s guest post on expiring email headers last week.
I, too, was at that meeting, and at many other meetings where marketers and the folks that run the ISP spam filters end up in the same room. I don’t think the marketers always understand what is happening inside the postmaster and filtering desks on a day to day basis at the ISPs. Legitimate marketing? It’s a small fraction of the mail they deal with. Ken claims that marketing pays the salaries of these employees and they’d be out of a job if marketing didn’t exist. Possibly, but only in the context that they are paid to keep their employers servers up and running so that the giant promises made by the marketing team of faster downloads and better online experiences actually happen.
If there wasn’t an internet and there weren’t servers to maintain, they’d have good jobs elsewhere. They’d be building trains or designing buildings or any of the thousands of other jobs that require smart technical people.
Ken has no idea what these folks running the filters and keeping your email alive deal with on a regular basis. They deal with the utter dregs and horrors of society. They are the people dealing with unrelenting spam and virus and phishing attacks bad enough to threaten to take down their networks and the networks of everyone else. They also end up dealing with law enforcement to deal with criminals. Some of what they do is deal with is unspeakable, abuse and mistreatment of children and animals. These are the folks who stand in front of the rest of us, and make the world better for all of us.
They should be thanked for doing their job, not chastised because they’re doing what the people who pay them expect them to be doing.
Yes, recipients want the mail they want. But, y’know, I bet they really don’t want all the bad stuff that the ISPs protect against. Ken took offense at a statement that he really shouldn’t have. ISPs do check their false positive rates on filtering, and those rates are generally less than 1% of all the email that they filter. Marketers should be glad they’re such a small part of the problem. They really don’t want to be a bigger part.

Multipart MIME cheat sheet

I’ve had a couple of people ask me about MIME structure recently, especially how you create multipart messages, when you should use them and which variant of multipart you use for different things. (And I’m working on a MIME parser / generator for Abacus at the moment, so it’s all fresh in my mind)
So I’ve put together a quick cheat sheet, showing the structure of four common types of email, and how their MIME structure looks.