Imports github.com/miekg/dns github.com/mitchellh/colorstring github.com/emersion/go-smtp github.com/emersion/go-msgauth/dmarc Imports in module “github.com/foxcpp/mailsec-check” github.com/foxcpp/mailsec-check/dns github.com/foxcpp/mailsec-check/mtasts Standard library imports bufio context errors flag fmt log os strings sync