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Gmail FBL update

Last week Gmail started contacting ESPs that signed up for their new FBL with more information on how to set up mailings to receive FBL emails. One of the struggles some ESPs are having is the requirement for DKIM signing. Many of the bigger ESPs have clients that sign with their own domains. Gmail is telling these ESPs to insert a second DKIM signature to join the FBL. There are a couple reasons...

Gmail image caching update

Late last year Gmail started caching images on their servers, breaking open tracking in some circumstances. This image caching was good for senders, in that images were back on by default. But it was also bad for senders because it broke dynamic content and didn’t allow for tracking of multiple opens by the same recipient. According to a new blog post by Moveable Ink this issue has now been...

Best practices: A Gmail Perspective

At M3AAWG 30 in San Francisco, Gmail representatives presented a session about best practices and what they wanted to see from senders. I came out of the session with a few takeaways. Gmail spends a lot of time and energy on filtering mail and giving the user the absolute best inbox experience possible. Gmail does per-user filtering, probably more than any other ISP out there. Gmail filters are...

ISPs speak at M3AAWG

Last week at M3AAWG representatives from AOL, Yahoo, Gmail and Outlook spoke about their anti-spam technologies and what the organizations were looking for in email. This session was question and answers, with the moderator asking the majority of the questions. These answers are paraphrased from my notes or the MAAWG twitter stream from the session. What are your biggest frustrations? AOL: When...

Gmail pilots new FBL

Yes, it’s true. Gmail announced last Thursday at M3AAWG that they were piloting a new Feedback loop. The Gmail FBL is currently for ESPs only. The announcement during MAAWG was that only MAAWG ESP members were eligible. They are requiring a DKIM signature for the FBL, but ESPs using individual customer d= values can get a FBL based on IPs. They are also not providing ANY information that...

Gmail speaks on image caching

Gmail released a blog post last week discussing their new image caching and why they implemented it. The short version is this is a way to improve the gmail user experience by screening images for malicious activity and serving the images faster from the Google caching machines.

FAQ about opens and Gmail caching

I had hoped to blog about something else today, but this still seems to be a big concern for a number of people. There are a lot of questions running around, some of which we don’t have answers to, others of which we have answers based on some evidence. It’s important to remember that we’ve seen Gmail roll things out and then roll things back and do phased transitions during...

More info about Gmail image caching

A lot of people are discussing the new Gmail image caching around the web. This doesn’t yet appear to be rolled out across all of Google’s network, so some people in different parts of the world are reporting different behaviors. This is leading to a little bit of confusion, as folks are reporting things like seeing multiple opens for a single image. These reports are clearly...

Gmail deploys image proxy servers

This afternoon Justin Foster of LiveClicker posted to the OnlyInfluencers list asking about Gmail rewriting links. Sometime very recently (last 24-48 hours), we are seeing that Google made a change to Gmail such that all image URLs in the email content are replaced by a call to Google’s content caching service googleusercontent.com. For example, an image with the src: “; will be...

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