remove email based request?

[Ben]

I have 2 email related to a JSM project. one is the default @atlassian.net and the other is a custom one, with the company's domain.

in the portal. it is possible to filter according to request types. when im looking to filter, i see both email request types.

i would like to remove the default email inbox based request. 

when i go to the request types, the delete option is grayed out (on both email based requests). 

i would like only the custom domain email based request to appear in the portal's request filter.

any advice?

[Callum Carlile _Automation Consultants_]

@Ben If you go to Project Settings > email requests and remove the Request Type from the email, you should be able to delete the request type. As long as you do not have a Request Type associated to an email it will not be processed.