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Content is the new volume!

I’m having a great time here at #EEC16. Today is my visit and go to sessions day, since tomorrow I’m speaking at 2 different sessions.
I was lucky enough to get into the Customer Experience session presented by Carey Kegel of SmartPak and Loren McDonald of IBM Marketing Cloud. It was an interesting session.
If you don’t know, SmartPak is a brand focused on selling horse tack and supplements. They initially started off by creating packs of supplements for your horse. This is great for horse owners, as it means the barn staff just needs to add one pack to your horse’s feed. No measuring, no confusion, it’s simple and means your horse gets what they need.
First they started talking about the volume of email sent by SmartPak. Their mails aren’t that consistent, but they mail between 25 and 30 emails a month. Some months last year they mailed every day.
What they started seeing, though, is that the volume of marketing mail drove list churn. The biggest reason users gave for unsubscribing was “too much volume.” The more mail they sent, the more unsubscribes they saw. Even worse, more volume did not translate into revenue. As email volume went up, email performance decreased.
They tested adding content to emails. Just a block on the side of the email with links to content on their website. Adding the content links increased click through rates by 9% and revenue per email by 15%.
These results don’t require the content be in the emails. Using emails to drive recipients to already existing content on the website, including videos and surveys.
The session didn’t specifically discuss deliverability directly, but I think there were some clear deliverability benefits to content marketing.  In fact, an email with no call to action, simply a post-purchase “what to expect” email had an open rate of 33%. These types of open rates help improve overall reputation and lead to more inbox deliveries.

The session really drove home how valuable content marketing is. One thing that was continually repeated during the session is that most marketers have the content already. Use email to drive users to the content you already have. Include that content in marketing mails. Meet the recipient’s needs and wants.
There are a couple takeaways I got from the session.

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DMARC p=reject

Mail.ru is switching to p=reject.
This means that you should special-case mail.ru wherever …
Actually, no. Time to change that script.
If you operate an ESP or develop mailing list software you should be checking whether the email address that is being used in the From: address of email you’re sending is in a domain that’s publishing p=reject (is a “rejective” email address) automatically. And you should probably do that in real time, whenever you need that piece of information, relying on DNS caching to reduce the network latency.
If you find you’re about to send an email From a rejective email address, you probably shouldn’t send it. Depending on how the recipients’ ISPs handle it, it might be discarded put in the bulk folder or rejected – potentially leading to recipients being unsubscribed.
If you’re writing mailing list software, ideally you should provide your users with several options for handling submissions from rejective email addresses, perhaps some from this list:

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Prepping for EEC


Tomorrow I head off to New Orleans to the EEC conference. It’s my first one and I’m really looking forward to meeting some of the people I only know online.
I’ll be speaking on two panels on Friday:
All You Ever Wanted to Know about Deliverability (But Were Afraid to Ask) at 10:50. This is your chance to ask those questions of myself and other experts in the field. I always enjoy Q&A panels and actually hearing from folks what their big deliverability questions are. (and remember, if you have a question, you can always send one to me for Ask Laura)
and the closing Keynote panel
ISP Postmasters & Blacklist Operators: Defending Consumer Inboxes at 1:10. I’m on a panel with various ISP postmasters, blacklist operators and we’ll be talking about what it’s like dealing with the deluge of mail. For instance, there is a huge outbreak of bot-spam at the moment, and a lot of the filters are struggling to keep up. In fact, I’m a last minute replacement for one filter company as they are in all-hands-on-deck firefighting mode to keep their customers safe.
Hope to see you there!
 

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Ask Laura: Do I have to publish DMARC?

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Foundation: A toolkit for designing responsive emails

Zurb announced today version 2 of “Foundation for Email”, a full stack for designing content for responsive email.
inky
It looks rather nice, with features a modern web developer might look for when working on email content. It has many of the things you’d expect a web design stack to have. It support SASS for styling, includes browser sync for previewing content as it’s edited, both on a local browser and on a device, and uses gulp to tie the workflow together.
But it also has some features useful for email that you’d be unlikely to find in a web design stack. It has an inliner, to convert separate SASS/CSS and HTML content into a single HTML document suitable for sending by mail. And it supports a slightly extended HTML format called “Inky”, which lets you use simple tags like <row> and <column> to develop grid-based content, then compile those into old-school HTML tables which mail clients will happily render.
And it comes with ten starter templates for different types of email.
You can find documentation, downloads and examples here.

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More Yahoo domains get DMARC'd

Yahoo is turning on p=reject for 62 of their international domains on March 28, 2016. These domains include:
y7mail.com
yahoo.at
yahoo.be
yahoo.bg
yahoo.cl
yahoo.co.hu
yahoo.co.id
yahoo.co.il
yahoo.co.kr
yahoo.co.th
yahoo.co.za
yahoo.com.co
yahoo.com.hr
yahoo.com.my
yahoo.com.pe
yahoo.com.ph
yahoo.com.sg
yahoo.com.tr
yahoo.com.tw
yahoo.com.ua
yahoo.com.ve
yahoo.com.vn
yahoo.cz
yahoo.dk
yahoo.ee
yahoo.fi
yahoo.hr
yahoo.hu
yahoo.ie
yahoo.lt
yahoo.lv
yahoo.nl
yahoo.no
yahoo.pl
yahoo.pt
yahoo.rs
yahoo.se
yahoo.si
yahoo.sk
yahoogroups.co.kr
yahoogroups.com.cn
yahoogroups.com.sg
yahoogroups.com.tw
yahoogrupper.dk
yahoogruppi.it
yahooxtra.co.nz
yahoo.ca
yahoo.co.in
yahoo.co.nz
yahoo.co.uk
yahoo.com.ar
yahoo.com.au
yahoo.com.br
yahoo.com.hk
yahoo.com.mx
yahoo.de
yahoo.es
yahoo.fr
yahoo.gr
yahoo.in
yahoo.it
yahoo.ro
These may cause some delivery issues with international Yahoo domains during the transition period. Anyone using these domains in mail not sent through the Yahoo interface is likely to experience increased bounces at ISPs who are respecting the p=reject request in the DMARC record.

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Ugg, a spammer.

I’ve written before about how there is some (I’m sure lovely) woman in the UK who has been connected to my email address. I get a lot of mail for her. Mostly spam. She doesn’t seem to be using the address, but I regularly get mail addressed to MRS. LAURA CORBISHLEY (all caps, always). Typically these messages are advertising various UK stores and products. Sometimes they’re mortgage offers. A few have been sweepstakes only open to UK residents.
ShadyGuyWebsite
I generally forward these spams off to various blocklists with the note it’s my “UK spamtrap” and they take whatever actions seem appropriate to them.
2016-03-21_14-33-39Today, though, I got my first US spam to Mrs. Laura Corbishly. From a Yesmail customer called sanuk.com. I’m getting a website error (they get smacked for spamming already?) but a little research tells me this is shoe company that owns a bunch of brands, including Ugg.
Yes, Ugg a Spammer. They even even have a disclaimer at the bottom of the email telling me they’re a spammer!
2016-03-21_14-35-54
Not so much, no. It appears, though, that the data brokers selling Mrs. Corbishley’s name connected to my email address have figured out that no one ever actually acts on any of their UK offers. So now they’re selling into the US market in hopes that they might entice a purchase?
On a purely nosy level, I’d love to know who was selling the address. First off, I’d love to know where they got this info in the first place. Secondly, what horrible database are they using that keeps name data in all caps? (When I get email to this trap I think they’re shouting at me, as if I’m the one who is wrong about my name. Maybe they think if they yell at me loud enough will I decide I really am the happy wife of Mr. Corbishley of Swindon, UK. )
I do tell clients that it’s useful to remind customers that they signed up for mail, especially if they haven’t mailed for a while. So I know not every email with a “you opted in” reminder is spam, but I only notice those things when I haven’t opted in. It’s something I mostly gloss over if I really did opt-in. I wonder if this is how other folks react to “you opted in” notices, too.
I do recommend the reminder be much more specific than “you opted in at our website.” Give the user a date, a time, something that isn’t just something any company can, and many do, make up.
 
 

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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.)

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Optimize your SPF records

I talked on Monday about the SPF rule of ten and how it made it difficult for companies to use multiple services that send email on their behalf.
Today I’m going to look at how to fix things, by shrinking bloated SPF records. This is mostly aimed at those services who send email on their customers behalf and ask their customers to include an SPF record as that’s the biggest pain point, but some of it is also useful to people publishing their own SPF records.
email_vice
Get rid of costly SPF directives
First, rethink using the “mx” directive. It’s often used in example SPF records, because it makes them look simpler. But an MX directive always triggers a DNS lookup that counts against your limit of ten, and it’ll also trigger a DNS lookup for each hostname in your MX record – they don’t count against the SPF limit but may increase the latency of your delivery a little. Better than using “mx” is to use explicit “ip4” and “ip6” records to list the addresses your smarthost and MX send mail from. Even though this makes your SPF record look longer it’ll actually make it smaller, as measured by DNS queries, as a single “mx” directive costs more than 20 “ip4” directives.
Similarly, avoid the “a” directive. It’s much less commonly seen but again can usually be replaced with “ip4” or “ip6” directives.
Don’t use “ptr” directives. They’re deprecated by the current SPF RFC.
Check the address ranges
If you have many “ip4” and “ip6” directives, make sure they’re not redundant. Are there any address ranges that you’re not using any more? Are there any adjacent address ranges that can be merged? For example, “ip4:x.y.z.4/24” and “ip4:x.y.z.5/24” can be replaced with “ip4:x.y.z.4/23” (note that you can’t always replace adjacent address blocks of the same size – read up on CIDR notation).
If you’ve generated your CIDR blocks from address ranges you can sometimes have very inefficient representations. The address range 10.11.12.1-10.11.12.254 needs 14 “ip4” directives to represent precisely. Instead you can use the single directive “ip4:10.11.12.0/24”, even if you’re not sending any email from the .0 or .255 addresses.
You don’t need a “~all” or “-all” at the end of a TXT record that is only included in another SPF record, not used directly. It won’t do any harm but it wastes a few characters.
Once you’ve got your list of SPF directives cleaned up the next thing to do is to pack them into one or more DNS TXT records.
Use as few TXT records as you can
Some SPF tutorials say that you can’t put more than 255 characters of SPF data into each TXT record. That’s not quite true, though.
A TXT record contains one or more strings of text and each string can contain no more than 255 characters. But an SPF checker will take all of the strings in a TXT record and concatenate them together in order before it starts looking at the content. So you can have more than 255 characters of SPF data in a TXT record by splitting it into more than one string. (Some low-end DNS management web front ends don’t really understand TXT records and won’t let you include multiple strings – you should check that your DNS management system does before relying on this).
How much more than 255? That’s where you have to get a little familiar with the DNS protocol, as the real limitation is that you don’t want your DNS packets to be more than 512 bytes long. (Why 512 bytes? That’s a long story of protocol changes and incompatibility, but 512 bytes are about as big as you can reliably use over UDP. Just trust me.)
The DNS overhead for a reply that contains a single TXT record with two strings is about 34 bytes, plus the length of the hostname that’s being queries (e.g. “spf.example.com” is 15 bytes). So to keep within the 512 byte limit you need to break your SPF into chunks of no more than 478 minus the length of the hostname. Then you need to break that SPF data into two strings (remembering that they’ll be concatenated with no white space added, so if you break it at a space you need to include the space at the end of the first string or the beginning of the second).
That’ll give you a TXT record that looks something like this:

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Email nightmare for some FSU students

shieldI mentioned yesterday that sometimes people and software screw up in ways that cause problems. Today I saw an article demonstrating just how bad these issues can be. Florida State University Housing Department sent detailed and confidential violation reports to tens of thousands of students.

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