...
  Net::SMTPS=GLOB(...etc...)>>>> EHLO localhost.localdomain
  Net::SMTPS=GLOB(...etc...)>>>> 250-smtp.gmail.com at your service ...
  Net::SMTPS=GLOB(...etc...)>>>> 250-SIZE 35882577
  Net::SMTPS=GLOB(...etc...)>>>> 250-8BITMIME
  Net::SMTPS=GLOB(...etc...)>>>> 250-STARTTLS
  Net::SMTPS=GLOB(...etc...)>>>> 250-ENHANCEDSTATUSCODES
  Net::SMTPS=GLOB(...etc...)>>>> 250-PIPELINING
  Net::SMTPS=GLOB(...etc...)>>>> 250-CHUNKING
  Net::SMTPS=GLOB(...etc...)>>>> 250 SMTPUTF8
  Net::SMTPS=GLOB(...etc...)>>>> AUTH LOGIN
  Net::SMTPS=GLOB(...etc...)>>>> 530 5.7.0 Must issue a STARTTLS command first ... Authentication (SMTP) failed