• feld's avatar
    Remove No MX lookups setting · 6ffe15cc
    feld authored
    This setting defaults to false so the relay host will be used in an MX query so
    multiple SMTP servers can be used. gen_smtp code states that all records returned from the
    MX query are attempted in order and only a permanent SMTP error will stop the client from
    attempting other servers in the list. Connection failures, TLS issues, etc will cause it to
    try the next host.
    If there is no MX record associated with the relay host, it automatically tries connecting to it
    There is really no reason to expose this to end users. The default value is fine for everyone.