Sdbgrey is a simple (less than 100 lines of shell script) greylisting policy server for Postfix. It is based on greylist.pl from the {ostfix distribution. It requires MySQL and libsdb with MySQL support.
| Tags | Communications Email Filters |
|---|---|
| Licenses | Public Domain |
| Operating Systems | POSIX Linux Solaris Unix |
| Implementation | SQL Unix Shell |