styx@HermesWWW:~/dev-prod/dev/SMA$ perl SendEmail.pl 
styx@HermesWWW:~/dev-prod/dev/SMA$ Net::SMTP>>> Net::SMTP(3.08_01)
Net::SMTP>>>   Net::Cmd(3.08_01)
Net::SMTP>>>     Exporter(5.72)
Net::SMTP>>>   IO::Socket::IP(0.37)
Net::SMTP>>>     IO::Socket(1.38)
Net::SMTP>>>       IO::Handle(1.36)
Net::SMTP=GLOB(0x55cc2bf21b80)<<< 220 mail.example.com ESMTP Postfix
Net::SMTP=GLOB(0x55cc2bf21b80)>>> EHLO localhost.localdomain
Net::SMTP=GLOB(0x55cc2bf21b80)<<< 250-mail.example.com
Net::SMTP=GLOB(0x55cc2bf21b80)<<< 250-PIPELINING
Net::SMTP=GLOB(0x55cc2bf21b80)<<< 250-SIZE 52428800
Net::SMTP=GLOB(0x55cc2bf21b80)<<< 250-VRFY
Net::SMTP=GLOB(0x55cc2bf21b80)<<< 250-ETRN
Net::SMTP=GLOB(0x55cc2bf21b80)<<< 250-STARTTLS
Net::SMTP=GLOB(0x55cc2bf21b80)<<< 250-ENHANCEDSTATUSCODES
Net::SMTP=GLOB(0x55cc2bf21b80)<<< 250-8BITMIME
Net::SMTP=GLOB(0x55cc2bf21b80)<<< 250-DSN
Net::SMTP=GLOB(0x55cc2bf21b80)<<< 250 CHUNKING
Net::SMTP=GLOB(0x55cc2bf21b80)>>> STARTTLS
Net::SMTP=GLOB(0x55cc2bf21b80)<<< 220 2.0.0 Ready to start TLS
Net::SMTP::_SSL=GLOB(0x55cc2bf21b80)>>> EHLO localhost.localdomain
Net::SMTP::_SSL=GLOB(0x55cc2bf21b80)<<< 250-mail.example.com
Net::SMTP::_SSL=GLOB(0x55cc2bf21b80)<<< 250-PIPELINING
Net::SMTP::_SSL=GLOB(0x55cc2bf21b80)<<< 250-SIZE 52428800
Net::SMTP::_SSL=GLOB(0x55cc2bf21b80)<<< 250-VRFY
Net::SMTP::_SSL=GLOB(0x55cc2bf21b80)<<< 250-ETRN
Net::SMTP::_SSL=GLOB(0x55cc2bf21b80)<<< 250-AUTH PLAIN LOGIN
Net::SMTP::_SSL=GLOB(0x55cc2bf21b80)<<< 250-ENHANCEDSTATUSCODES
Net::SMTP::_SSL=GLOB(0x55cc2bf21b80)<<< 250-8BITMIME
Net::SMTP::_SSL=GLOB(0x55cc2bf21b80)<<< 250-DSN
Net::SMTP::_SSL=GLOB(0x55cc2bf21b80)<<< 250 CHUNKING
Net::SMTP::_SSL=GLOB(0x55cc2bf21b80)>>> AUTH PLAIN df9ib3RAcG9tZXJlcmlnLmRlAHJvYm90JDUvbWVyZXJpZy5kPOI0M0UwM01IcjHgFlO=
Net::SMTP::_SSL=GLOB(0x55cc2bf21b80)<<< 235 2.7.0 Authentication successful
Net::SMTP::_SSL=GLOB(0x55cc2bf21b80)>>> MAIL FROM:<robot@example.com>
Net::SMTP::_SSL=GLOB(0x55cc2bf21b80)<<< 250 2.1.0 Ok
Net::SMTP::_SSL=GLOB(0x55cc2bf21b80)>>> RCPT TO:<stefan@example.com>
Net::SMTP::_SSL=GLOB(0x55cc2bf21b80)<<< 250 2.1.5 Ok
Net::SMTP::_SSL=GLOB(0x55cc2bf21b80)>>> DATA
Net::SMTP::_SSL=GLOB(0x55cc2bf21b80)<<< 354 End data with <CR><LF>.<CR><LF>
Net::SMTP::_SSL=GLOB(0x55cc2bf21b80)>>> Date: Wed Jul 31 23:18:52 2019
Net::SMTP::_SSL=GLOB(0x55cc2bf21b80)>>> From: robot@example.com
Net::SMTP::_SSL=GLOB(0x55cc2bf21b80)>>> To: stefan@example.com
Net::SMTP::_SSL=GLOB(0x55cc2bf21b80)>>> Subject: hi
Net::SMTP::_SSL=GLOB(0x55cc2bf21b80)>>> test-msg
Net::SMTP::_SSL=GLOB(0x55cc2bf21b80)>>> .
Net::SMTP::_SSL=GLOB(0x55cc2bf21b80)<<< 250 2.0.0 Ok: queued as 9F6EC721B52
Net::SMTP::_SSL=GLOB(0x55cc2bf21b80)>>> QUIT
Net::SMTP::_SSL=GLOB(0x55cc2bf21b80)<<< 221 2.0.0 Bye