Invalid value for ByteString error when calling gmail send API with base64 encoded < or >
问题 Really stuck on this one and pulling my hair out trying to figure out what to do, searched everywhere and tried everything but still stuck. Any help is much appreciated. So I am calling the Gmail send message API: https://www.googleapis.com/gmail/v1/users/me/messages/send I pass in the following base64 encoded raw message: