Hotmail has recently been in the news for improving their users’ Inbox experience, enhancing tools and improving their filters. More specifically, Hotmail is trying to combat “Graymail”  or all of the newsletters, offers, social network website emails, and other email communications many sign up for and are no longer relevant to you but keep getting delivered. These are emails that users legitimately receive but no longer want – roughly 75% of email identified as spam by Hotmail customers according to Windows Live Hotmail.

At Experian CheetahMail, this Graymail announcement has left many of our clients asking how this change will affect their messages and more importantly their deliverability/Inbox performance. These enhancements go along with what CheetahMail Deliverability has always advised about mailing to your actives. Basically any mail that is sitting in a users’ Hotmail inbox untouched (not opened or clicked) after a while is considered Graymail. Hotmail is trying to reduce the burden of all sorts of offers, newsletters etc for the user and their own system.

We don’t have much insight into their filter algorithms but we can assume if too many people are allowing the clients emails to sit in their inboxes and end up as graymail, Hotmail’s filter will pick this up and can possibly start sending the emails to bulk. We have often seen a decrease in user engagement as a reason for Hotmail bulking. By mailing to your active and engaged Hotmail users this Graymail issue should become a non-issue. Additionally, consider asking users to add the client to their address book to ensure inbox delivery and avoid spam/junk foldering. Instructions can be found here: http://www.cheetahmail.com/deliverability/reach-the-inbox/

The two main features of Graymail that we DO know are:

One-click Unsubscribe

Hotmail has had an unsubscribe link in the user interface already, but how they handle these requests are changing and not complying could result in your email being sent to the spam folder. If a subscriber clicks on the unsubscribe link in the Hotmail interface now, and either the list-unsubscribe header isn’t present or doesn’t work, email from that sender will be permanently delivered to the spam folder. CheetahMail complies with this unsubscribe request.

Schedule Cleanup

Hotmail users can now decide how long they want messages from a particular sender, or all senders, in their inbox before they are deleted permanently or moved to a specified folder. This could be the best time to reach out to your subscribers and give them a choice to the frequency of emails they want to receive. This cleanup could also prove to be beneficial for senders as subscribers may not mark old, unwanted email as spam which can adversely drive up spam complaints.

Since the holiday season is the most important time of year for retail emailers, here are some best practices for maintaining a good sending reputation and staying in the Inbox during the upcoming holiday season – a time when the Inbox is inundated with emails and offers.

• Now is the time to emphasize the “please add us to your address book” requests and instructions during the email registration process and in welcome emails. Not only will you get added to user whitelists which overrides ‘junk’ or ‘spam’ folder delivery, but also recipient response rates should be better, as well as brand perception, because images are displayed by default. A new trend for marketers is to consider sending a dedicated message solely to drive address book adoption in advance of the holidays. For example, “We are going to have some fantastic deals during the holidays. Add us to your address book to make sure you don’t miss them.” In light of the recent Facebook ‘Messages’ announcement, it is also now important to use such a dedicated email to request users become a ‘fan’ or ‘like’ your content.  [See example below]
• If you have a group of recipients who haven’t been mailed in a long time, before mailing them all at once, consider testing small segments to gauge complaint and bounce rates and make creative and segmentation adjustments with subsequent campaigns to ensure these metrics don’t become a risk to your overall messaging reputation.
• It is critical to maintain the same ‘from’ addresses and formulate subject lines that highlight the email’s ‘call-to-action’ and is not too ‘cheeky’ that it could be confusing or misleading to recipients where it may lead to user complaints.

In 2009, holiday email volume rose, increasing over  26% from the 2008 holiday season. We can predict this trend to continue for the 2010 holiday season meaning the ISPs will be working in overdrive to ensure all relevant and legitimate email is delivered into the Inbox while keeping out the large amount of true spam. Following these holiday best practices, and others such as maintaining ‘engaged’ users will help keep your clients’ IP reputation strong, your Inbox delivery rates high, your targeted customers happy and ultimately your revenue numbers up.

Every email service provider treats hard bounces differently. In most cases, a hard bounce will never be valid ever again. In select cases, it may just mean that the address is currently unavailable but will be available at some point later.

Here’s a personal story about why it doesn’t make a lot of sense to bounce remove after the first attempt.

I purchased my personal domain name in 1998 and have used it for select personal email relationships ever since. I had a problem with my domain registrar a couple years ago that involved them accidentally expiring my domain without notifying me. It then took weeks to get it fixed. In the meantime, all personal email to me hard bounced. Some of my most important contacts reached out to me through other channels, a few even sending snail mail informing me of the bounced email.

While this situation is rare, it is just one of many reasons why emails hard bounce and yet will be valid once again in short order.

In the past, ISPs used to focus on hard bounces as a critical anti-spam metric. With today’s sophisticated filters focused primarily on complaints and other data, very few ISPs see a reasonable (<5%) hard bounce rate as an indicator of spam as long as the other performance metrics are also in line with legitimate email.

Some additional tips when considering bounce removal rules:

1. Every ISP is different, therefore a liberal bounce rule at less sophisticated ISPs (like those without real-time complaint data) could result in deliverability problems.
2. Re-mailing bounces again is not the same as ‘re-trying’ a message. If the address is invalid now, it likely won’t be valid again the same day or even a few days from now. Wait a week or more before re-mailing that user.
3. Never re-mail bounces more than a few months old. Some ISPs turn bad data into spamtraps, which are used as an anti-spam filter. In some cases, ISPs will share defunct addresses with 3^rd party blocklists like Spamhaus. In other cases, an ISP may recycle that address to another user.
4. If the relationship is really important (or if you have the resources), consider a personalized snail mail effort following a bounce. I was pleasantly surprised about the letters from my commercial relationships and valued those relationships even more as a result.

Google recently announced plans to enhance Gmail by introducing a ‘Priority Inbox’ which will soon be rolling out to its estimated 200mm global users. Experian CheetahMail’s deliverability team has received many inquiries about the new interface, what it may mean for our clients, and how it could affect deliverability.

From a deliverability perspective, this feature once again proves that building a good sender reputation that includes regular customer engagement is of the utmost importance. If users are consistently marking your mail with increased priority, then the sender’s reputation will likely improve. If users are consistently marking mail with decreased priority, the sender’s reputation will likely degrade. While the importance of these new priority settings are mainly user-specific, if too many people push the ‘less important’ button, then Gmail’s algorithm will take this into account and may push those senders email into the “Everything else” section or possibly into the Spam folder.

How Priority Inbox works:

Priority Inbox analyzes incoming mail, giving it a ranking and sorting it into four customizable sections: “Important and unread” (or just “Important”), “Starred” and “Everything else.” “Important” messages are intended to be the most relevant or relationship-oriented, and sit at the top of the screen. Next is the “Starred” section which are messages the user manually flags or sets up as a recurring indication of importance. “Everything else” includes those messages that may not be from an established contact or regularly engaged with before.

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It is a sad reality that there are unscrupulous folks who send spam and phishing emails. Some of the most authentic looking and most dangerous spam messages I have seen in my inbox have been from phishers trying to replicate financial services emails. These fake emails usually notify me that my account has been frozen and then encourage me to click on a link or to reply with personal information.

Recently I received a legitimate and noteworthy series of emails from Bank of America. Their first email introduced updates to their alert emails so that their customers could expect what to look for. The new features include a new look, personalization, a security checkpoint, alert information and more. I am sure Bank of America has been dealing with spoofed emails for some time now, so hopefully these changes will reduce security headaches and help stop the spammers.

The first educational email from Bank of America draws attention to the forthcoming  changes:

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For many years, the public impression of how email deliverability works has been shrouded in mystery. Most seem to assume that email service providers hire deliverability experts because they know some sort of ISP black magic — or even better, that they have a direct ‘Bat-Phone’ to call ISP postmasters whenever a problem arises. While ISP relations are still critical to ensuring high delivery rates, the days of relying solely on ISP phone calls or emails to fix delivery problems are a thing of the past.

It’s important to note these key issues about ISP postmasters:

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There really is a baby in that bath water.

I’ve never used that idiom before, but in this case, I feel compelled to use it in response to an article in BtoB Magazine that actually promotes the use of unsolicited commercial email (UCE). In the article, Gary Halliwell, CEO of NetProspex, says that “there’s nothing prohibiting a marketer from sending an e-mail to someone who hasn’t opted in. The recession has forced us to drop this etiquette.”

Everyone has a different definition of what spam is, yet I think we can all agree that at a baseline it starts with unsolicited commercial email — promotional messages sent to consumers who have not requested them. My feeling is that just because we are burdened by an economic recession right now does not give us license to abandon the principles of responsible, permission-based email marketing. By lowering our standards when the going gets tough, we risk losing our industry’s credibility with consumers altogether.

I’ll keep my underlying point here brief: PLEASE DON’T SEND SPAM! If you’re still new to email or striving for more education, please refer to these best practice guides which include recommendations and guidelines that the vast majority of the email industry follow:

• Direct Marketing Association US
• Direct Marketing Association UK
• Email Sender & Provider Coalition
• Messaging Anti-Abuse Working Group