.TH nullmailer-smtp . .SH NAME . nullmailer-smtp \- smtp mail sender for nullmailer . .SH SYNOPSIS . .B /usr/lib/nullmailer/smtp [flags] remote-address < mail-file . .SH DESCRIPTION . Send an email message via SMTP . .SH OPTIONS .TP .B -p, --port=INT Set the port number on the remote host to connect to .TP .B --user=VALUE Set the user name for authentication .TP .B --pass=VALUE Set the password for authentication .TP .B -d, --daemon use syslog exclusively .TP .B -s, --syslog use syslog additionally .TP .B --auth-login Use AUTH LOGIN instead of auto-detecting in SMTP .TP .B --ssl Connect using SSL (on an alternate port by default) .TP .B --starttls Use STARTTLS command .TP .B --x509certfile=VALUE Client certificate file .TP .B --x509cafile=VALUE Certificate authority trust file (Defaults to /etc/ssl/certs/ca-certificates.crt) .TP .B --x509crlfile=VALUE Certificate revocation list file .TP .B --x509fmtder X.509 files are in DER format (Defaults to PEM format) .TP .B --insecure Don't abort if server certificate fails validation .TP .B -h, --help Display this help and exit .TP .SH SEE ALSO . .BR nullmailer-send (8), .BR nullmailer-qmqp (8)