I've been using the technique outlined in this blog post to use emoji in subject lines:
But it doesn't seem to always work—occasionally the emoji will appear but sometimes the raw Q code would appear in the subject line.
Has anyone had any experience using this technique? Or is there a better technique?
It's the only way. 🙂 And used many millions of times a day.
Do you have a repro case for an emoji, and the full Subject line: including the Q-encoded segment, that doesn't work? Every time someone's mentioned this in the past, it hasn't been reproducible.
I'll try to reproduce it, but it was very hard to reproduce - sometimes it'd work, sometimes not! I was wondering if there were specific emoji the technique simply didn't work with. Will keep testing. But it's a little unnerving to see this technique work sometimes when you need to send a live email.
There's no Unicode code point that can't be Q-encoded. But you can't use Emojis that simply aren't supported (yet) in all mail clients & browsers.
For example, I received these emails the other day. Check the Subject: of the first one. I didn't bother Q-decoding the missing glyph to see what they meant, but obvs. my late-model Android phone doesn't have the glyph in the default font. Bad choice!