PIM Manager settings · Settings > Mail & alerting

Encryption

Key	Mail.SmtpSecurity
Where	Settings > Mail & alerting > Mail sending > SMTP relay (also Get Started > Mail sender)
Type	Choice
Default	STARTTLS
Confirmation	PIM Manager asks you to confirm before it is switched on.

What it does

Whether the connection to the SMTP relay is encrypted with STARTTLS or sent in clear text (None). Only STARTTLS on a plain port is supported; implicit TLS on port 465 is not.

When set

When set to None: mail, the relay user name and password, and any TAP codes travel unencrypted between PIM Manager and the relay. Takes effect for the PIM Manager at once and for the engine and jobs on their next run.

When blank or default

At the default (STARTTLS): the connection is upgraded to TLS before the relay sign-in and the message are sent; a relay that does not offer STARTTLS makes the send fail.

Risk and how to reverse it

None exposes the relay password and the mail content, including one-time TAP codes, to anyone who can see the network path. Use it only for an internal relay on a network you control. Reversible: switch back to STARTTLS and save.

Requires

Admin role in PIM Manager. Mail mode SMTP relay with a server configured.