I don't love the look of the media file URls with the salesprophet branding in the URL

https://salesprophetgeneric.blob.core.windows.net/attachments/Media/....

Not urgent. Have other hosting options.

Ideal solution would be a generic domain you choose (because this name may be off-putting for cold leads that don't know the sender). I don't think custom white label is necessarily needed if the blob storage location name were more like "media" or "files" and didn't mention "prophet" or "sales"