smtp_starttls is not defined on upgrade, let's check for !empty to avoid undefined index errors
smtp_starttls is not defined on upgrade, let's check for !empty to avoid undefined index errors

interlab/Elkarte,interlab/Elkarte,elkarte/Elkarte,elkarte/Elkarte,nwsw/Elkarte,elkarte/Elkarte,Spuds/Elkarte,emanuele45/Dialogo,StealthWombat/How-to-fork-an-Elk,Spuds/Elkarte,StealthWombat/How-to-fork-an-Elk,interlab/Elkarte,StealthWombat/How-to-fork-an-Elk,Spuds/Elkarte,nwsw/Elkarte,emanuele45/Dialogo,emanuele45/Dialogo,StealthWombat/How-to-fork-an-Elk,nwsw/Elkarte