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How to Perform Sendmail to Postfix Migration? Best Solution

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Published By Jamie Kaler 
Rollins Duke
Approved By Rollins Duke
Published On January 23rd, 2025
Reading Time 5 Min Read

Do you want to perform Sendmail to Postfix migration? And don’t know the safest solution to convert Sendmail to Postfix email client? If yes, then don’t feel tense, here we are to help you. This write-up will explain to you the best and most advanced solution to perform Sendmail to Postfix migration. Let’s start the article without wasting your time.

Sendmail vs Postfix

Sendmail is an MTA (Mail Transfer Agent) that is used to send emails from one system to another while using a client-server application architecture.

Postfix is one of the preferred choices among the users to manage the emails & messages for an organization. It is a Unix-based interface & easy to set up Mail Server for medium & large-sized corporations. It is one of the most flexible Email Servers as it can change various style interfaces.

The security of mailboxes in Postfix Mail Server is one of its building blocks which make it a popular email management service for UNIX users. Due to these advancements of Postfix over Sendmail, a large number of users want to perform Sendmail to Postfix migration.

We have an HP-UX environment running HP-UX 11.31. The system was originally built to send emails out through Sendmail. The server only sends emails out, and the programmer has built several programs using the mailx command to send the emails. We have decided to move from Sendmail to Postfix to fix some configuration issues and use an easier-to-configure program on the server.

I’m not a Linux admin, but from a quick search, the e-mail messages stored in the old server are in MBOX format, while on the new server, the Postfix daemon works storing mailboxes in Maildir format. What I’m trying to understand is how to remove Sendmail from the routing and have mailx queue email directly with Postfix. – Kyle Jones, Manchester

This can be done with the help of MBOX Converter Software which provides a direct option to do so. Just follow these simple steps to better understand the whole process.

How to Migrate Sendmail to Postfix Automatically?

Sendmail to Postfix migration tool which enables the users to switch emails from Sendmail to Postfix account quickly & instantly. This software allows users to change multiple files at once in bulk without facing any limitations. The working of this amazing toolkit is very easy & simplified as any non-technical user can better understand it. Just follow these simple steps to so.

How to Perform Sendmail to Postfix Migration?

  1. Install & Run Sendmail to Postfix migration tool & read all important instructions.

    Sendmail to Postfix migration tool

  2. Browse for Sendmail Mailbox items (*.mbox) in your application panel by dual ways from source location i.e. /etc/mail/virtusertable or /etc/mail/local-host-names.

    source location

  3. Choose the Sendmail Mailbox folders with sub-folders to compete the whole process.

    Mailbox folders

  4. Choose Maildir option from the list of 30+ Saving options.

    Maildir option

  5. Setup Sendmail Mailbox to Postfix Maildir file conversion option in software panel as change destination path etc.

    destination path

  6. Click on Convert button & analyse the whole file conversion process.

    file conversion process

  7. Access the resultant Maildir files directly from destination folder & save the mailbox items at Postfix default storage location i.e. /var/mail/[username].

    resultant Maildir files

As from above we can easily conclude that one can successfully Sendmail to Postfix migration. The utility is itself a state-of-the-art toolkit having world-class features.

Major Features of Sendmail to Postfix Migration Tool:

The utility comes up with some powerful & amazing features which makes it a state-of-the-art solution in the same domain. Some of the major features of this amazing software are listed below;

  • Supports to export unlimited Sendmail Mail Server files to Postfix account without any limitation.
  • It will preserve the on-disk system folder hierarchy of the Sendmail mailbox items.
  • Also allows to export of Sendmail Mail to Postfix Maildir files including Cur, TMP, or New subdirectories.
  • Allows batch export of multiple Sendmail Mail Server user’s mailbox data to Postfix at a single instance.
  • Enables the users to convert Sendmail emails to Postfix Mail Server along with all inserted attachments.
  • It will perform Sendmail to Postfix migration which will also enable the users to switch from Sendmail to Dovecot, Qmail, or Courier Mail Servers.
  • The software enables the users to save resultant Postfix-supported files on the Desktop. Apart from that, users can also change the default destination path according to their requirements.
  • The software is fully compatible with Microsoft Windows OS i.e. Win 11, 10, 8.1, 8, 7, XP, and Vista for both 32-bit & 64-bit OS editions.

The Verge

In the above blog post, we successfully find an advanced solution Sendmail to Postfix migration tool. We take the help of a professional toolkit instead of a third-party free manual script i.e. md2mb.pl. The software is one of the best solutions available in present time & its trial version will export the first 25 emails from each folder.