Publisher review:vpopmail provides you an easy way to manage virtual email domains. vpopmail provides you an easy way to manage virtual email domains and non /etc/passwd email accounts on your qmail or Postfix mail servers.
Features:
- Support for 1 to 23 million virtual email domains using a "grow as it goes" balenced directory tree.
- Support for 1 to 23 million email users per domain using the same balenced tree structure.
- Automates all qmail configurations into handy and scriptable command line programs and documented API library calls.
- Automates Unix user/group/other permissioning of directories and files.
- Supports authenticated relay control of your qmail smtp server.
- Virtual email file/directories can be assigned to any user/group or do the default vpopmail/vchkpw 89/89.
- Does not require email user accounts in /etc/passwd
- Supports name or IP based virtual domains
- Configurable logging based on real world admin's comments and requirements.
- Support for Mysql, Oracle, PostgreSQL, /etc/passwd, /etc/shadow LDAP, Sybase, and default cdb authentication storage.
- Delivers directly to Maildir for use with qmail-pop3d, .qmail files or any other Maildir program.
- No need to have hundreds of .qmail files for virtual domains. Each domain gets it's own directory under vpopmail user with a separate password file for each domain.
- Documented command line programs that can be used in scripts or for remote admin.
- Documented C library for all vpopmail features and transactions.
Requirements: ยท qmail
vpopmail 5.4.17 is a C/C++ script for E-Commerce scripts design by Ken Jones.
It runs on following operating system: Linux / BSD.
Operating system:Linux / BSD
vpopmail 5.4.17 script details 
