13 SMTP Tools to Diagnose and Test Email Security
geekflare.com › smtpDec 09, 2021 · Test and diagnose your server security with MxToolbox. All you need to do is enter your mail server address and hit the button next to the field. This test connects your mail server through SMTP and performs an Open Relay Test. This way, the tool helps you verify if the server includes a reverse DNS or PTR record.
SMTP Diagnostics 1.0 : The Official Microsoft IIS Site
www.iis.net › downloads › communityMar 19, 2010 · Features. SMTPDiag 1.0 aims at helping simplifying troubleshooting for failures occurring because of DNS or SMTP configuration problems. SMTPDiag uses the following features to isolate and determine problems: Makes test requests based on user-inputted information such as sender & receiver. Validates that DNS MX records are configured correctly.