Truncate mail content when adding to Comment in JSD

[Pedro Santos]

Scenario:

JSD project with JETI mail handler

The handler reads the mail > if matches existing request : add mail as comment

If character limit  is bigger than what is set in JSD mail is rejected

Is it possible to truncate the mail content when adding to a comment?

With JETI it can be done for description field, but looks like it's not possible with Comment field.

I want to avoid increasing the characters limit, so I'm hoping for some other way to achieve this.

Any idea out there?