Unable to send dmail to certain users

Lately I've been getting errors (HTTP Error 500 Internal server error) when trying to send messages to various users. API and web interface both fail for these users, and I don't know why only some users fail.

DakuTree is the latest to fail (it was just an auto-notice).

I've had that problem when Dmailing him as well. I find that using hijiribe.donmai.us, though, it works. A temporary solution for now.

That's a bit weird, can't send Dmails to myself either. Possibly a bug, can't see what could cause it though.

Okay, I got a dmail to DakuTree using the API and danbooru.donmai.us. But maybe this just occurs in intervals and will happen to other users later. Or maybe it fails if the message possesses certain attributes (length, chars, etc...).

Mysterio006 said:
I find that using hijiribe.donmai.us, though, it works. A temporary solution for now.

Alright, I'll try all five URL variants whenever I hit an error; thanks for the suggestion.