Hello,
is there a way to customize email notification in order to add our logo, and some html code in the email body ?
If so in which program is it ?4
Cheers,

Hi.

Each email have own template:

ROOT/components/com_community/templates/default/email.album.like.html.php
ROOT/components/com_community/templates/default/email.album.wall.html.php
ROOT/components/com_community/templates/default/email.album.wallreply.html.php
ROOT/components/com_community/templates/default/email.events.invitation.approved.html.php
ROOT/components/com_community/templates/default/email.events.invite.html.php
ROOT/components/com_community/templates/default/email.events.joinrequest.html.php
ROOT/components/com_community/templates/default/email.events.notifyadmin.html.php
ROOT/components/com_community/templates/default/email.events.notifycreator.html.php
ROOT/components/com_community/templates/default/email.events.sendmail.html.php
ROOT/components/com_community/templates/default/email.events.wallcomment.html.php
ROOT/components/com_community/templates/default/email.friends.approve.html.php
ROOT/components/com_community/templates/default/email.friends.invite.html.php
ROOT/components/com_community/templates/default/email.friends.request.html.php
ROOT/components/com_community/templates/default/email.groups.album.html.php
ROOT/components/com_community/templates/default/email.groups.bulletin.html.php
ROOT/components/com_community/templates/default/email.groups.discussion.html.php
ROOT/components/com_community/templates/default/email.groups.discussion.newfile.html.php
ROOT/components/com_community/templates/default/email.groups.discussion.reply.html.php
ROOT/components/com_community/templates/default/email.groups.event.html.php
ROOT/components/com_community/templates/default/email.groups.invite.html.php
ROOT/components/com_community/templates/default/email.groups.memberapproved.html.php
ROOT/components/com_community/templates/default/email.groups.memberjoin.html.php
ROOT/components/com_community/templates/default/email.groups.notifyadmin.html.php
ROOT/components/com_community/templates/default/email.groups.notifycreator.html.php
ROOT/components/com_community/templates/default/email.groups.post.html.php
ROOT/components/com_community/templates/default/email.groups.sendmail.html.php
ROOT/components/com_community/templates/default/email.groups.video.html.php
ROOT/components/com_community/templates/default/email.groups.wallcomment.html.php
ROOT/components/com_community/templates/default/email.groups.wall.html.php
ROOT/components/com_community/templates/default/email.photos.like.html.php
ROOT/components/com_community/templates/default/email.photos.tagging.html.php
ROOT/components/com_community/templates/default/email.photos.wall.html.php
ROOT/components/com_community/templates/default/email.photos.wallreply.html.php
ROOT/components/com_community/templates/default/email.profile.activitycomment.html.php
ROOT/components/com_community/templates/default/email.profile.activityreply.html.php
ROOT/components/com_community/templates/default/email.profile.like.html.php
ROOT/components/com_community/templates/default/email.profile.stream.like.html.php
ROOT/components/com_community/templates/default/email.profile.wallcomment.html.php
ROOT/components/com_community/templates/default/email.profile.wall.html.php
ROOT/components/com_community/templates/default/email.user.deleted.html.php
ROOT/components/com_community/templates/default/email.videos.convert.success.html.php
ROOT/components/com_community/templates/default/email.videos.like.html.php
ROOT/components/com_community/templates/default/email.videos.tagging.html.php
ROOT/components/com_community/templates/default/email.videos.wall.html.php
ROOT/components/com_community/templates/default/email.videos.wallreply.html.php
ROOT/components/com_community/templates/default/email.wall.post.html.php

But email template is nested in parent template:

ROOT/components/com_community/templates/default/email.html.php

So do a override of the parent template and add your logo there.