
Authentication "SASL authentication is required", SSL Method "TLS V1", SMTP Relay Username " ", SMTP Relay Password "", Security "No encryption (use plain text)".Authentication "Use standard SMTP authentication", SSL Method "TLS V1", SMTP Relay Username " ", SMTP Relay Password "", Security "Encrypt data using Transport-Level Security (TLS)".
Authentication "Use standard SMTP authentication", SSL Method "TLS V1", SMTP Relay Username " ", SMTP Relay Password "", Security "No encryption (use plain text)". Authentication "No authentication is required", SSL Method "TLS V1", Security "Encrypt data using Transport-Level Security (TLS)". Authentication "No authentication is required", SSL Method "TLS V1", Security "No encryption (use plain text)". So, I configured on PRTG Server (Notifications Delivery): My email service is Office 365 (Exchange Online) and I get informations above with admin: Sender E-Mail: I'm having problem sending email notifications to an SMTP relay with authentication.