#set default values for all following accounts.
defaults
auth           on
tls            on
tls_trust_file /etc/ssl/certs/ca-certificates.crt
logfile        ~/.msmtp.log

# Gmail
account        gmail
host           smtp.gmail.com
port           587
from           myname@gmail.com
user           myname
password       mypassword

# Set a default account
account default : gmail

echo "test" | mutt -s "test email" anotheremail@gmail.com

msmtp: cannot locate host smtp.gmail.com: Temporary failure in name resolution
msmtp: could not send mail (account default from ~/.msmtprc)
Error sending message, child exited 68 (Host unknown.).
Could not send the message.

ping smtp.gmail.com

ping: unknown host smtp.gmail.com