mxrlkn

I can recommend Swinsian https://swinsian.com

It's like classic iTunes. It worked very well when I used it a couple years ago.

There's ARC headers on the emails I get forwarded, so looks like it. I don't know about SRS.

I just switched to iCloud as well, but I want all my email forwarded to my private gmail account. One thing to be aware of with iCloud is that it doesn't do ARC, so your forwarded emails will fail on SPF. I instead use cloudflare's email forwarding for incoming email, which does support ARC, and then iCloud for outgoing. Works well so far.

Right, but for it to be JSONP, the response should be injected into a script tag, I believe.

I was once tasked with creating a new frontend on an old project that had an API endpoint return something like this:

  var array = ["foo", "bar"]

I was expecting xml or json (like the rest of the endpoints), but I realized that they just served this as text, and then eval'd it on the frontend...

I looked into this recently. The free plan doesn't include custom domains anymore. If you had an account before they removed it, you still have it on the free plan.