I have some custom fonts I would like to host and start testing within our promotional email sends. I am aware of the limited support but have had success testing with an older version of this font hosted elsewhere using fallbacks for Outlook, etc. My concern, as brought forth from my manager, is whether hosting them on an unusual domian would cause the email send to start filtering into spam folders or become blocked altogehter. Any advice for hsoting your own fontsw and wheher domain "warming" might be something to consider?