" Option protocol accepts smtp and lmtp.
syn match msmtpWrongOption /\<protocol \(smtp$\|lmtp$\)\@!.*$/
" Option auth accepts on, off and the method.
" Option protocol accepts smtp and lmtp.
syn match msmtpWrongOption /\<protocol \(smtp$\|lmtp$\)\@!.*$/
" Option auth accepts on, off and the method.