Hi My git sendmail -1 command , throws the above error. Can anyone help me solve it ? Jules Net::SMTP>>> Net::SMTP(3.13) Net::SMTP>>> Net::Cmd(3.13) Net::SMTP>>> Exporter(5.74) Net::SMTP>>> IO::Socket::IP(0.41) Net::SMTP>>> IO::Socket(1.43) Net::SMTP>>> IO::Handle(1.42) Net::SMTP=GLOB(0x55f23ecd2bf0)<<< 220 smtp.gmail.com ESMTP qu23sm2565932ejb.1 - gsmtp Net::SMTP=GLOB(0x55f23ecd2bf0)>>> EHLO earthie.\040none\041 Net::SMTP=GLOB(0x55f23ecd2bf0)<<< 501-5.5.4 HELO/EHLO argument "earthie.\040none\041" invalid, closing connection. Net::SMTP=GLOB(0x55f23ecd2bf0)<<< 501 5.5.4 https://support.google.com/mail/?p=helo qu23sm2565932ejb.1 - gsmtp Net::SMTP=GLOB(0x55f23ecd2bf0)>>> HELO earthie.\040none\041 Net::SMTP: Net::Cmd::getline(): unexpected EOF on command channel: at /usr/libexec/git-core/git-send-email line 1539. Unable to initialize SMTP properly. Check config and use --smtp-debug. VALUES: server=smtp.gmail.com encryption=tls hello=earthie.\040none\041 port=587 at /usr/libexec/git-core/git-send-email line 1566.