Related Posts

B2B mail and compliance failures

This morning I got an email to a tagged address. The tag matched the company so it’s very likely I did actually sign up. Digging back through my mailbox, I see one previous email to that account – back in 2008.

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Life of an Email

I’m repeating the presentation I gave at M3AAWG in London for the Certified Senders Alliance.

It’s all about how to send an email by hand, and how knowing the mechanics of how an email is sent can help us diagnose email delivery issues.

We’re starting in about five hours from when I post this.

Register at https://register.gotowebinar.com/register/2268789893122531343

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Who are mimecast?

Mimecast is a filter primarily used by businesses. They’re fairly widely used. In some of the data analysis I’ve done for clients, they’re a top 10 or top 20 filter.
Earlier today someone asked on Facebook if mimecast may be blocking emails based on the TLD. The short answer is it’s unlikely. I’ve not seen huge issues with them blocking based on TLD of the domain. They’re generally more selective than that.

The good news is mimecast is really pretty good about giving you explanations for why they’re blocking. They’ll even tell you if it’s mimecast related or if it’s a specific user / user-company block.
Some example rejection messages from a recent dive into some bounce logs.

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