Command-line, stack-based calculator with postfix notation

Postfix Sender Rewriting Scheme daemon

XOAUTH2 mechanism plugin for cyrus-sasl

signing-milter enables you to s/mime sign an ordinary mail while passing a MTA. Base on https://signing-milter.org/ by Andreas Schulze

Opensource high performance policy daemon for Postfix

gld, a lightweight greylist daemon for postfix

This repository contains the basic C code for the following conversions: Infix To Postfix, Infix To Prefix, Postfix to Infix, Postfix To Prefix, Prefix To Postfix, Prefix To Infix

It is an simple content filter for Postfix MTA, implementing mail message interfacing with external content filters (SpamAssassin and ClamAV) to provide protection against spam, viruses and other malware

Extracts URLs from a mail message and checks it against one or more URI blacklists. Can also verify if any link is bad or broken.

SPF (Sender Policy Framework) in a Postfix

Limit the number of messages by connecting client IP, sender, or recipient.

Data Structure Lab Programs

An interface to the popular open source SpamAssasssin mail analysis tool, which returns a score based on a comprehensive set of patterns and Bayesian checks.

This is a simple program that converts infix expressions to postfix expressions. It is written in C and uses a stack to store the operators. It is a simple program that I wrote to show how to use a stack in C.

Compile C-syntax based code with pure written data structures.

This is a postfix evaluator written in C. It takes a postfix expression as input and evaluates it. It supports the following operators: - * / ^ ( )

An independent implementation of the RFC 4408 Sender Policy Framework (SPF-Classic).

A simple expression evaluator in Java, C and python

A “call-forward” milter for mail gateways to verify that mail recipients exist on an authoritative mail store before the gateway accepts the message.

Any mathematical expression can be expressed in infix, post-fix and pre-fix formats. This C application is a universal expression convertor implemented using stack data structure. This structure will take input of input expression and conversion option from the user and provide the output in the desired format. The goal of this application is to…