SMTP Preprocessor 1.11



Publisher Description



SMTP Preprocessor is advanced tool for mail administrators. It enhances functionality of corporate mail server. The program receives SMTP messages before corporate SMTP server, on-the-fly changes or rejects them, and retransmits result to the server. Wide range of settings allows to improve security and add new features to corporate SMTP server. SMTP Preprocessor can reject connection based on remote host IP address or DNS name (Black List), presence of reverse DNS PTR record, validity of HELO or EHLO command and connections limit; reject MAIL command based on sender address (Black List), transactions limit and message size; reject RCPT command based on recipient address (Private Recipients List), recipient domain name (Anti-Relaying), sender address (Restricted Senders List), recipients limit or based on Greylisting technology; reject out-of-order SMTP command; delay its response (Tarpitting technology); flexibly replace corporate SMTP server response or any SMTP Preprocessor generated response; replace sender in SMTP envelope (MAIL command); replace recipient in SMTP envelope (RCPT command). The program keeps adjustable detailed log of all SMTP events.

About SMTP Preprocessor

SMTP Preprocessor is a free software published in the Mail Servers list of programs, part of Servers.

This Mail Servers program is available in English. It was last updated on 27 March, 2024. SMTP Preprocessor is compatible with the following operating systems: Windows.

The company that develops SMTP Preprocessor is Sergey Merzlikin. The latest version released by its developer is 1.11. This version was rated by 2 users of our site and has an average rating of 4.0.

The download we have available for SMTP Preprocessor has a file size of . Just click the green Download button above to start the downloading process. The program is listed on our website since 2013-11-10 and was downloaded 243 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded software with your antivirus. Your antivirus may detect the SMTP Preprocessor as malware if the download link is broken.

How to install SMTP Preprocessor on your Windows device:

  • Click on the Download button on our website. This will start the download from the website of the developer.
  • Once the SMTP Preprocessor is downloaded click on it to start the setup process (assuming you are on a desktop computer).
  • When the installation is finished you should be able to see and run the program.



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Users Rating:  
  4.0/5     2
Downloads: 243
Updated At: 2024-03-27
Publisher: Sergey Merzlikin
Operating System: Windows
License Type: Free