How to Convert Sylpheed to Outlook PST?

Chirag Arora ~ Modified: January 7th, 2022 ~ Email Conversion ~ 4 Minutes Reading

Looking for a convenient way to export Sylpheed emails to Outlook? Here we have a full-proof solution that can convert all messages from Sylpheed to PST format easily. Available for both Windows and Mac.

About Sylpheed: Sylpheed is an easy to use open-source application with serves as an email and news client. It is a cross platform software which runs on multiple platforms including Mac OS, Linux, Windows and other Unix-like systems. It provides multiple features such as spam filtering, extensibility through plugins, password protection and encryption. As far as the mailbox data is concerned, Sylpheed stores all emails and attachments in a file with no extension (commonly knows as MBOX file).

Sylpheed is easy to use for sure but has limited functionalities when compared to standard emails clients like Outlook. Also, it is not so popular, especially when it comes to the professional section of society. So due to reasons both personal or workplace oriented, users tend to switch from Sylpheed to Outlook.

Export Sylpheed to Outlook – Convert Sylpheed Mailbox to PST

As explained earlier, Sylpheed stores its data in MBOX file format which actually is not compatible with MS Outlook application. For such purpose, Outlook uses its own propitiery format PST. Thus to access Sylpheed emails in Outlook, the best course of action is to convert the Sylpheed mailbox to PST format. And SysTools MBOX to PST Converter is the application of choice for such tasks. It provides a safe environment dedicated towards accurate and efficient conversion of Sylpheed messages to PST. The complete process requires to be completed in two sections:

  1.  Locate the Sylpheed MBOX file(Export it if need be),
  2.  Afterward convert Sylpheed MBOX to Outlook PST format.

Let us start the procedure.

I. Locate or Export MBOX File of Sylpheed Mail Client

Default location of Sylpheed mailbox on Windows is as follows:

C:\Documents and Settings\Administrator\Application Data\Sylpheed\Mailboxes\Mail

or ‘C:\Users\admin\AppData\Roaming\Sylpheed\Mailboxes\Mail

Alternatively, Sylpheed for each platform provides an inbuilt option to export all its data in Unix MBOX format. The general steps in latest version is as follows:

  • Go to File menu and select Export to mbox file
  • Select the folder to save the file.
  • You can even rename your file.


II. Convert the MBOX file of Sylpheed to Outlook PST

Update: The steps remain the same for software version 5.0 with better speed and efficiency.

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Step 1: Select Add File > Next on main interface and browse the Sylpheed MBOX file from local system

sylpheed to pst converter

Step 2: Software will scan and display all Sylpheed emails along with attachments

preview Sylpheed emails and attachments

Step 3: Set multiple export options as per choice for the scanned file

export options

Step 4: Finally export the selected MBOX file of Sylpheed to Outlook PST format.

export sylpheed emails to pst format

Given above are the brief steps of conversion procedure on Windows platform. For Mac users, a separate Mac MBOX Converter is also available with high-end protocols for safe and accurate conversion.

Download for Mac

Additional Features of Sylpheed Converter

Sylpheed converter is not limited to only basic functionality of saving Sylpheed data in PST format. It incorporates a wide range of user-friendly and enterprise level features for a friendly yet powerful conversion experience. Some of them are as follows:

  • Designed to aid both novice and professional users during conversion
  • Supports export feature in multiple file formats: PST, MSG, EML, NSF & HTML
  • Emails viewing and conversion to PDF
  • Customizable export options to create a single PST file or separate for each MBOX
  • Preserves data integrity, attachments, inline images, formatting and email headers
  • Also maintains folder hierarchy during Sylpheed to Outlook conversion.


Sylpheed exists as an open source application available for multiple platforms. Although friendly for home users, it lacks thorough email management functionalities found in standard clients such as Outlook. Which is why users of Sylpheed often switch to Outlook. This email migration requires conversion of Sylpheed emails to PST. This article provides a perfect solution that converts MBOX file of Sylpheed to Outlook readable PST format.

Queries Regarding Sylpheed to Outlook Conversion:

Steps to import Sylpheed emails in Outlook:

  • Step 1: Download & Install Sylpheed to Outlook Converter.
  • Step 2: “Add” Sylpheed files into the software.
  • Step 3: “Preview” Sylpheed emails with attachments.
  • Step 4: Choose “PST” & “Export” Sylpheed to Outlook.
Where does Sylpheed store its data?

The data is stored here: C:\Users\admin\AppData\Roaming\Sylpheed\Mailboxes\Mail