Allow HTML signatures in K-9 Mail/Thunderbird for Android

[klikini]

Currently I have an HTML signature for my work account on Thunderbird desktop that contains some simple text formatting and a logo image, but pasting the same HTML into the signature setting in K-9 Mail just inserts the HTML as text into the email.

[jrea00]

Agreed this is a very important feature.  I look forward to having it on my Android account like it is on my desk top.

[Shanenz]

Hi.

I have just moved over to Thunderbird email and this would be fantastic if we can get email signature (images) on the Android app. Fingers crossed 🤞 

On another note a fantastic app and I will be donating.  Keep up the good work.