Author: laura

Microsoft using the List-Unsubscribe header

An interesting observation from Brian Curry about how Microsoft is using the List Unsubscribe header in their interface. The short version is that Microsoft is only supporting mailto: links. They’re ignoring any List-Unsubscribe links that are a URL. Here are some screenshots.  When the sender is using a List-Unsubscribe <http://> header, Microsoft states that there […]


AOL MX Change update

The AOL postmaster team posted some information about the upcoming MX transition on their blog. [S]tarting this week, the majority of AOL’s MX records will point to [OATH’s] new combined servers. This should be transparent to any sender as those servers will operate in simple pass-through mode. This means senders with established FBLs will continue […]

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Collecting email addresses

One of the primary ways to collect email addresses is from website visitors, and it’s actually a pretty good way to collect addresses. One of the more popular, and effective, techniques is through a pop-up window, asking for an address. Users need to provide an address or click a “no thanks” link or close the […]

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Social media connections are not opt-ins

It seems silly to have to say this, but connecting on social media is not permission to add an address to your newsletter or mailing list or prospecting list or spam list. Back in 2016, I wrote: [Scraping addresses from LinkedIn] is really rude. Just because someone accepted your contact request on LinkedIn, doesn’t mean […]

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Still with the Microsoft problems

We took a quick trip to Dublin last week. I had every intention of blogging while on the trip, but… oops. I did get to meet with some clients, and had a great dinner while discussing email and delivery. Coming back, I see a lot of folks still reporting delivery problems to Microsoft properties. I’ve […]

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Filters evolving

I started writing this blog post while sitting on a conference call with a bunch of senders discussing some industry wide problems folks are having with delivery. Of course the issue of Microsoft comes up. A lot of senders are struggling with reaching the inbox there and no one has any real, clear guidance on […]


That’s not how you do it…

Got an email this morning from a company advertising their newest webinar “The Two Pillars of Effective Large-Scale Email: Security and Deliverability.” The message came to a tagged address, so clearly I’d given them one at some point. But I didn’t recognize the name or company or anything. I did a search to seen when […]

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Oh, Microsoft

Things have been a little unsettled at Microsoft webmail properties over the last few months. A number of ESPs reported significantly increased deferrals from Microsoft properties starting sometime late in November. Others saw reduced open rates across their customer base starting in late October. More recently, people are noticing higher complaint rates as well as an […]


Google makes connections

One of the client projects I’m working on includes doing a lot of research on MXs, including some classification work. Part of the work involves identifying the company running the MX. Many of the times this is obvious; is office365, for instance. There are other cases where the connection between the MX and the […]

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Happy 2018

This is the time of year when everyone starts posting their predictions for the coming year. Despite over a decade of blogging and close to 2500 blog posts, I have’t consistently written prediction articles here. Many years I don’t see big changes on the horizon, so there’s not a lot to comment on. Incremental changes […]

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