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How do you make tickets? (email collection, email piping, api, ui, etc)
What are the settings that you used for the above method?

@SujitPatil

Remember, search is your best friend:

• https://github.com/osTicket/osTicket/pull/5934

You will need to upgrade to the latest stable version of v1.15.3.1 to address this. This is why it's important to stay on top of updates.

Cheers.