opensmtp configuration

•  hostname hongy19.net is used on listen, not key words in configuration file
• table
• man page
• table could be file or db
• table could be list or mapping
• credential in a relay context
• the credentials are a mapping of labels and username:password pairs, format: label1 user:password
• passwords are not encrypted (smtpctl encrypt subcommand.)
• table examples
• table users   file:/etc/smtpd/users
• table creds   file:/etc/smtpd/creds
• table domainemail  {hongy19 = hongy19@hongy19.net}
• relay
• action "outbound" relay host smtps://smtp2go@mail.smtp2go.com:465 auth <creds> mail-from "@hongy19.net -> doesn't work for smtp2go
• action "outbound" relay host smtps://smtp2go@mail.smtp2go.com:465 pki hongy19.net auth <creds> mail-from "@hongy19.net"   -> work for smtp2go
• action "outbound" relay host smtp+tls://smtp2go@mail.smtp2go.com:587 auth <creds> mail-from "@hongy19.net" -> work for smtp2go