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Installs and configures nullmailer, simple relay-only mail transport agent.


  • node['nullmailer']['mailname']

    Fully-qualified host name of the node running relay agent. Defaults to node.fqdn.

  • node['nullmailer']['remotes']

    A list of remote servers to which to send each message. Each element contains a remote host name or address followed by an optional protocol string, separated by white space. The protocol name defaults to smtp, and may be followed by command-line arguments for that module.


    node['nullmailer']['remotes'] = ['', 'host.domain smtp --port=2525 --user=user --pass=pass']

    Possible command-line arguments:

    • --port, set the port number of the remote host to connect to
    • --user, set the user name to be used for authentication
    • --pass, set the password for authentication
    • --auth-login, use AUTH LOGIN instead of auto-detecting in SMTP
    • --ssl, Connect using SSL (on port 465 instead) (1.10+)
    • --starttls, use STARTTLS command (1.10+)
    • --x509cafile, Certificate authority trust file (1.10+)
    • --x509crlfile, Certificate revocation list file (1.10+)
    • --x509fmtdef, X.509 files are in DER format (1.10+)
    • --insecure, Do not abort if server certificate fails validation (1.10+)
  • node['nullmailer']['adminaddr']

    Recipients to users on localhost or canonical host name (mailname) are remapped to this address. This allows local daemons to send emails to 'somebody@localhost' and have it go somewhere sensible instead of being bounced by your relay host.

License and Authors

Author:: Arkency

Copyright 2012, Arkency

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.