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How to Delete/Compress Email Attachments from MBOX?


Smartest solution designed to improve email data management from MBOX files and reduce MBOX file size. SysInspire MBOX Compressor Software efficiently reduces MBOX file size by removing attachments and compressing them into ZIP files using four different methods. Easily execute MBOX file compression job with its user-friendly interface. Also, perform batch compression of multiple MBOX files at one time.

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Remove and Compress Attachments from 25 emails of each selected MBOX file.

Step-1) Begin by downloading and launching the SysInspire MBOX Compressor Software on your Windows-based computer.

click on the "Add File/Folder" button to proceed.

MBOX Compressor Software main screen
Step-2) Please select an option to add MBOX email files:
  • Select MBOX file: - Manually add a MBOX file from its location.
  • Select MBOX Folder: - Add a folder containing several MBOX files within it.
  • Auto Load Thunderbird Profile: - Automatically load mail folders/files from Thunderbird's default storage location.

Once you've chosen the appropriate option, proceed to import the Thunderbird email files and click Next.

add/load MBOX files
Step-3) Import MBOX email files into the software and then load mail folders from them.

Choose required folders and press the Compress MBOX button.

mbox email preview
Step-4) Configure the necessary settings for MBOX file compression in the following screen, including:
  • Conversion options
  • Filtering attachment extensions
  • Email filtering
  • Saving location
mbox compression settings

Available settings and options for MBOX File Compression.

  • Conversion Options
    • Remove Attachment and Save MBOX File: - Get new MBOX files with emails without containing attachments.
    • Remove Attachment from MBOX and Save Attachments: - Emails without attachments save to new MBOX files and get attachments on separate folder.
    • Compress Attachment and Save MBOX File: - Generate new MBOX files with your old MBOX file's emails and attachments in ZIP formats.
    • Remove Attachment from MBOX and compress and save Attachments: - Old MBOX files emails store to new MBOX without attachments. Compresses the attachments into ZIP files and saves them in a separate place.
  • Save Attachment: - Choose the method for storing extracted attachments.
    • Save Attachment Message-Wise: - Create folders per email, naming them by subject and organizing related attachments within.
    • Save Attachment Folder-Wise: - Generate a distinct folder for each MBOX file, to store all email attachments within.
  • Attachment Extension Filtering
    • Predefined Extensions: - Choose from a list of attachment file extensions to remove or compress from the MBOX.
    • Custom Extensions: - Manually input attachment file extensions for removal or compression from MBOX file.
  • Email Filtering: Select email date ranges for attachment removal or compression.
  • Destintaion Path: - Select the file storing method for resulting MBOX files.
    • Manual Selection: - Browse and choose a location from your drive to store the newly compressed MBOX files and attachments.
    • Save in Thunderbird: - The software will automatically import the compressed MBOX files and attachments into Thunderbird's local folders.
Step-5) Click the "Compress Now" button to initiate the MBOX file compression process.
remove attachments and compress mbox files
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