Title : How to send html signature in mu4e
Author: Solène
Date  : 07 June 2016
Tags  : email emacs

I switched to mu4e to manage my mails at work, and also to send
mails. But in our corporation we all have a signature that include our
logo and some hypertext links, so I couldn't just insert my signature
and be done with that. There is a simple way to deal with this
problem, I fetched the html part of my signature (which include an
image in base64) and pasted it into my emacs config file this way.

    (setq mu4e-compose-signature 
	  "<#part type=text/html><html><body><p>Hello ! I am the html signature which can contains anything in html !</p></body></html><#/part>" )

I pasted my signature instead of the hello world text of course, but
you only have to use the part tag and you are done ! The rest of your
mails will be plain text, except this part.