sma2ldif 0.0.3

Tool to Convert Sendmail Alias Files to Proofpoint LDIF Format

Sendmail Alias File to Proofpoint LDIF Converter

Tool to Convert Sendmail Alias Files to Proofpoint LDIF Format

Requirements:

• Python 3.9+

Installing the Package

You can install the tool using the following command directly from GitHub.

pip install git+https://github.com/pfptcommunity/sma2ldif.git

or can install the tool using pip.

# When testing on Ubuntu 24.04 the following will not work:
pip install sma2ldif

If you see an error similar to the following:

error: externally-managed-environment

× This environment is externally managed
╰─> To install Python packages system-wide, try apt install
    python3-xyz, where xyz is the package you are trying to
    install.

    If you wish to install a non-Debian-packaged Python package,
    create a virtual environment using python3 -m venv path/to/venv.
    Then use path/to/venv/bin/python and path/to/venv/bin/pip. Make
    sure you have python3-full installed.

    If you wish to install a non-Debian packaged Python application,
    it may be easiest to use pipx install xyz, which will manage a
    virtual environment for you. Make sure you have pipx installed.

    See /usr/share/doc/python3.12/README.venv for more information.

note: If you believe this is a mistake, please contact your Python installation or OS distribution provider. You can override this, at the risk of breaking your Python installation or OS, by passing --break-system-packages.
hint: See PEP 668 for the detailed specification.

You should use install pipx or you can configure your own virtual environment and use the command referenced above.

pipx install sma2ldif

Use Cases

In certain Proofpoint on Demand setups, valid recipient addresses may not be listed in Azure, LDAP, or Active Directory. Some organizations use aliases on an internal Sendmail system to direct messages to mailing lists or other destinations. This tool converts Sendmail alias configurations into LDIF format for import into a Proofpoint on Demand cluster. The aliases are added as contact lists, enabling recipient verification without disrupting custom email workflows. An example of a converted alias entry is provided below.

dn: [e-mail]
uid: 9cf8803e-fc8c-5d4a-8381-e59b33eaa8a5
description: Auto generated by sma2ldif
givenName: 1002d
sn: sma2ldif
profileType: 1
mail: [e-mail]

The the example above was generated using the following arguments:

sma2ldif -i /etc/aliases -o /tmp/aliases.ldif -d acme.com

If other domains are listed with the -d argument as shown below.

sma2ldif -i /etc/aliases -o /tmp/aliases.ldif -d acme.com, example.com, foo.com

The result would look similar to the following.

dn: [e-mail]
uid: 9cf8803e-fc8c-5d4a-8381-e59b33eaa8a5
description: Auto generated by sma2ldif
givenName: 1002d
sn: sma2ldif
profileType: 1
mail: [e-mail]
proxyAddresses: [e-mail]
proxyAddresses: [e-mail]

Usage

usage: sma2ldif --alias-file <aliases> --ldif-file <ldif> -d <domain>
                [<domain> ...] [-g <group> [<group> ...]] [-e]
                [--log-level {debug,info,warning,error,critical}]
                [-l LOG_FILE] [-s LOG_MAX_SIZE] [-c LOG_BACKUP_COUNT] [-h]

Convert Sendmail alias files to Proofpoint LDIF format.

Required Arguments:
  --alias-file <aliases>                                  Path to the input
                                                          Sendmail aliases
                                                          file.
  --ldif-file <ldif>                                      Path to the output
                                                          LDIF file.
  -d <domain> [<domain> ...], --domains <domain> [<domain> ...]
                                                          List of domains for
                                                          alias processing
                                                          (first domain is
                                                          primary).

Optional Arguments:
  -g <group> [<group> ...], --groups <group> [<group> ...]
                                                          List of memberOf
                                                          groups for LDIF
                                                          entries (default:
                                                          none).
  -e, --expand-proxy                                      Expand
                                                          proxyAddresses into
                                                          unique DN entries.
  --log-level {debug,info,warning,error,critical}         Set the logging
                                                          level (default:
                                                          warning).
  -l LOG_FILE, --log-file LOG_FILE                        Set the log file
                                                          location (default:
                                                          sma2ldif.log).
  -s LOG_MAX_SIZE, --log-max-size LOG_MAX_SIZE            Maximum size of log
                                                          file in bytes before
                                                          rotation (default:
                                                          10485760).
  -c LOG_BACKUP_COUNT, --log-backup-count LOG_BACKUP_COUNT
                                                          Number of backup log
                                                          files to keep
                                                          (default: 5).
  -h, --help                                              Show this help
                                                          message and exit.