220 smtp.gmail.com ESMTP d2e1a72fcca58-72541762c0csm4725228b3a.33 - gsmtp

"Hello, this is Gmail’s SMTP server (smtp.gmail.com). I’m ready to communicate, and I support the Extended SMTP protocol (ESMTP). Your session ID is d2e1a72fcca58-72541762c0csm4725228b3a.33. Let’s proceed."