Transfer Tool 'Live Transfer' does not proxy Webmail

Checked and I don't believe this has been raised before. We've completed another migration using Transfer Tool's 'Live Transfer' but ran into an issue where user's normal Webmail logins failed post transfer. Seems the failure is because 'Live Transfer' proxies web & email traffic but not Webmail. Hope the mods allow this but just wanted to document for others (I searched but could not find anyone else with the same issue) and also push our feature request so hopefully Webmail proxying can be added to the 'Live Transfer' feature set: