The remote certificate is invalid according to the validation procedure.

However, below powershell command to send email works fine on the same job server:

Send-MailMessage -from "xxxx" -to "yyy" -Subject "Test OK" -Body "Test is OK" -SmtpServer "smtp.xxx.com"

Is your PowerShell using the same user as the Job Service?

What is the value of the configuration parameter Common\MailNotification\TransportSecurity?

Yes, i ran powershell with same user which is configured to run jobqueue service.

Common\MailNotification\TransportSecurity is set to auto.

What is configured at your mail server in regards to security? Does it work when you set  the correct transport security? 

SSLV3, TLS1.0 to TLS1.2 is supported on email gateway.

Should i set either SSL or TLS version on "Common\MailNotification\TransportSecurity" and enableSSL or startTLS parameter on mail component?

Common\MailNotification\TransportSecurity must be set to None and the parameter enabled in the process step, NoTransportSecurity.

Is it working now? Same issue we are also facing. Please let me know if you tried with other solutions.

Hi Trevor,

can you tell me please what all the other predefined values of the configuration parameter Common\MailNotification\TransportSecurity are used for (e.g. SSL or STARTTLS etc.) and in which context they should be used?

Cheers,

Wilfried

Please Trevor. How can I set the 'NoTransportSecurity' parameter? Tks

Thanks for sharing.