Thanks for your reply … I already found the issue and was about to post it…
Stupid mistake : not having a verified email address in the config, thus Mautic was throwing an auth error in the logs … Well, what can I say 
Thanks for your reply … I already found the issue and was about to post it…
Stupid mistake : not having a verified email address in the config, thus Mautic was throwing an auth error in the logs … Well, what can I say