BuddyPress.org

Hello ! I’ve been looking everywhere for a solution, but since I haven’t found anything that is a real solution, I’m posting a new topic.

My problem is : the emails sent by BuddyPress are in plain text and not in html. I’ve looked into the plugins we have installed, but none are SMTP. We’re using WordPress 4.6.1, BuddyPress 2.7.1 and the following plugins :
Advanced Custom Fields
AMP
Appfull
BbPress
Bottom Admin Bar
BP Emails for BBP
BuddyPress Votes
BuddyPress Xprofile Custom Fields Type
Duplicate Post
Glue for Yoast SEO & AMP
Gravity Forms
Gravity Forms CSS Ready Class Selector
Hero Slider
Loco Translate
Meta Box
Multiple Post Thumbnails
Page Builder par SiteOrigin
Redirection
Reveal IDs
rtMedia for WordPress, BuddyPress and bbPress
SiteOrigin CSS
SiteOrigin Widgets Bundle
TinyMCE Advanced
Ultimate Addons for SiteOrigin
WordPress Social Login
WP Viral Quiz
Yoast SEO

I’ve seen someone suggest modifying the bp core functions, which is a really bad idea and not a viable solution for my problem.

Anyway, thanks in advance !