220 smtp.gmail.com ESMTP 41be03b00d2f7-cd6549fb561sm1631919a12.23 - gsmtp
250-smtp.gmail.com at your service, [103.58.102.50]
250-SIZE 35882577
250-8BITMIME
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-CHUNKING
250 SMTPUTF8
220 2.0.0 Ready to start TLS
TLS NEGOTIATION SUCCESS
250-smtp.gmail.com at your service, [103.58.102.50]
250-SIZE 35882577
250-8BITMIME
250-AUTH LOGIN PLAIN XOAUTH2 PLAIN-CLIENTTOKEN OAUTHBEARER XOAUTH
250-ENHANCEDSTATUSCODES
250-PIPELINING
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250 SMTPUTF8
334 VXNlcm5hbWU6
334 UGFzc3dvcmQ6
SMTP AUTHENTICATION SUCCESS