Gavin Deichen

This is the response to a simple mailjet post / request, basically the same as this: https://github.com/mailjet/mailjet-apiv3-nodejs#simple-post-request

It's not a rate limit problem; there is a (silent!) limit of 200/day for the free tier, but the emails go through to the queue without an error. I got...

The server had a static IP. I ended up wiping it and starting from scratch. I haven't had the problem since.