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Category: Industry

Machine learning resources

Thanks to everyone who joined the deliverability discussion on Friday. I realised after I scheduled that it was Good Friday and that may have limited some folks’ ability to join. This call we talked about Machine Learning and how it is applied to spam filters. Before the call I put together some resources in a […]

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Spamhaus DBL errors

Sometime in the last few days, Spamhaus seems to have started issuing a block message if someone queries the DBL with an IP address. folks started seeing an uptick in error messages that mention Spamhaus saying: 554 5.7.1 Service unavailable; Client host [x.x.x.x] blocked using dbl.spamhaus.org; No IP queries, see https://www.spamhaus.org/faq/section/Spamhaus%20DBL#279 (in reply to RCPT […]

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Whose side are you on?

A few weeks ago I was on an industry call. We were discussing some changes coming down the pike at the ISPs and filter providers. These changes are going to cause some headache at ESPs and other places that do email but don’t provide mailboxes. During the call I ended up explaining why what the […]

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Let’s do it again

Given the success of our initial call, let’s try it again. This time Friday April 10, 5pm Ireland time, 12 noon Eastern and 9am Pacific. Same as before, send me an email to laura-ddiscuss@ the obvious domain and I’ll send you an invite. I’m trying to move the days around to catch folks who couldn’t […]

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Misinformation on filters

I’ve seen reports that someone is asserting that utm=COVID19 in URLs results in all mail going to bulk at multiple ISPs. This is the type of thing that someone says is true and dozens of folks believe it and thus a “deliverability phact” is born. For a plethora of reasons, this doesn’t pass the sniff […]

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Discussion Session

More than 30 people joined our delivery discussion from last Wednesday evening (Irish time). Thanks to all who joined and participated. I had a number of different topic suggestions, but the thing on everyone’s mind was the current pandemic and how much email many of our customers, clients, and companies are sending. We had what […]

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Deliverability discussion

Lots of folks are socialising distantly these days, so I thought I’d try a scheduled deliverability discussion over video. Given the time difference, I’ll log on in the evening Irish time which makes this daytime for most of the US folks. The first call will be Wednesday, March 25, 2020 at 5pm Ireland time. That’s […]

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Happy St. Patrick’s Day

It’s a near silent St. Paddy’s day here in Ireland. We took a walk along the canal and took in the silence. On the way back, our neighbour’s kids had decorated their front window and I had to take a picture. Things are weird. Be kind to yourself and to others. Wash your hands. Don’t […]

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Authentication at Office365

This is a followup from a post a few weeks ago about authentication changes at Office365. We have some more clarity on what is going on there. This is all best information we have right now. Microsoft is now requiring authentication to match the visible from address in order to reach the inbox at Office365. […]

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Deliverability mythbusting

Recently had the pleasure of sitting down with Jillian Bowen and talking about deliverability for her podcast.

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