Why is it that Anonymous Posts should be rejected? Many, many Posts asking a question that do NOT provide the bare minimum adequate information to give a pertinent and informed answer, such as Country of Passport, location of 1 of 94 Thai Embassy/Thai Consulate submitted E–Visa Application, location of 1 of 87 local Thai Immigration Office as each can and does have different and specific requirements, etc.
if it's Anonymous, then the only realistic way to give pertinent and useful information is thru multiple back-and-forth threads to determine details....
it seems like, along with DTV Extensions, local Thai Immigration Offices just don't want to deal with DTV's, as, technically, there is a provision to Convert (Change of Visa Type) from DTV to another type of Visa
Google's Gmail works fine with the Thai eVisa Website and several Thai Embassies and Thai Consulates around the world use and have Gmail Email Addresses