jazzkin

Thanks a lot I will check it out.

I will have to look through what settings Fastmail are using but this is a good starting of point. It's not from a "consumer" network IP block but I will look into the details that you have provided and see if it changes anything.

Thanks a lot, always good to have a starting point.

You're making some valid points and I could try to do it trough my own servers or some other provider but it feels like Fastmail should be fairly reputable but I could be wrong.

It's all going to peoples SPAM-folders when I try to contact people.