the from address is blank:
["waue_managerweeklyupdate_1_From"]=>\
string(0) ""\
the status of the emails shows the error from gmail:
["waue_managerweeklyupdate_1_Log"]=>\
string(212) "Sending To: sisocare@gmail.com... 10004 - Failed to set sender: @localhost [SMTP: Invalid response code received from server (code: 555, response: 5.5.2 Syntax error. nx12sm38539041pab.6 - gsmtp)] - Failure
the from address needs to be your gmail address.