Robot Unable To Send Emails When Exceptions Have Been Raised

How to resolve when Robot is unable to send emails when exceptions have been raised?

Troubleshooting Steps:

Approach #1: Update to the latest version of UiPath.Mail.Activities and observe

  1. Try with different secure connection


Approach #2:

  1. Download and install Fiddler from:
  2. Open Fiddler
  3. Tools > Options
  4. Set the HTTPS tab to the following configuration
  1. Restart Fiddler
  2. Open the UiPath Studio/Robot and obtain the exception
  3. Once it is connected, the transactions can be viewed
  4. To save go to File > Save > All Sessions and save it as .saz
  5. Check for any failure of connection related mail server or certificate server or CRL server.

Approach #3:

  1. In properties panel make "Ignore CRL" as True
  2. Above settings will skip the CRL validation, so even though if the connection to the CRL validation server fails the mail activity will work.