The MSG to ZIP tool lets you archive an Outlook .msg email by wrapping the original file inside a single .zip package. It preserves the message exactly as uploaded, keeping all content and metadata untouched. This tool only creates a zip container for the .msg file; it does not modify or convert the email itself.

Original .msg file preserved

The converter takes the uploaded Outlook .msg file and places it inside a ZIP archive without modifying any bytes. Because the file is only wrapped, the email’s body, formatting, and embedded objects remain exactly as they were when originally saved, ensuring that the archived copy can be opened later with full fidelity.

All metadata retained

Every piece of metadata stored in the .msg—including sender and recipient fields, subject line, timestamps, custom properties, and any attached files—is kept intact inside the ZIP container. When the archived .msg is extracted and opened in Outlook or a compatible viewer, all original header information and attachment relationships appear exactly as in the source message.

Compact single‑file ZIP container

The output is a single ZIP file that contains only the original .msg, providing a tidy package that can be transferred through systems that require archive formats. Because no additional files are added, the ZIP size is essentially the size of the original message plus minimal ZIP overhead, making it ideal for email archiving or secure sharing.

Supported file size range

The service accepts .msg files up to the size limit of the user’s current tier: the free tier handles typical mailbox messages, a free Aspose account raises the per‑file ceiling, and paid subscriptions increase it further. Any file that fits within these limits is wrapped successfully, allowing users to choose the tier that matches their typical workload.

Limits and scope

Single‑file processing: Each conversion wraps exactly one .msg file, producing a single ZIP output
Retention period: Source and ZIP files are kept on the server for 24 hours after conversion

How to convert MSG to ZIP

STEP 1

Upload your file

Click inside the file drop area to upload your files or drag & drop them.

STEP 2

Convert

Click on the "Convert" button. Your files will be uploaded and converted immediately.

STEP 3

Download

Download link of converted ZIP files will be available instantly after conversion.

STEP 4

Feedback

Check conversion results and send us your feedback.

FAQ

Does the ZIP contain the original .msg file unchanged?

Yes, the tool wraps the uploaded Outlook .msg file inside a ZIP archive without modifying any bytes, so the email content and formatting remain exactly as in the source.

Are all Outlook metadata fields kept after wrapping?

All metadata stored in the .msg—including sender, recipients, subject, timestamps, custom properties, and attachment relationships—is retained inside the ZIP container.

Is the resulting ZIP file only the .msg file plus minimal overhead?

The output is a single ZIP file that contains only the original .msg, so its size is essentially the size of the message plus the small overhead required for the ZIP format.

What are the file‑size and batch limits for this conversion?

The free tier accepts typical Outlook .msg files; signing in with a free Aspose account raises the per‑file size cap, while paid subscriptions increase the limit further. Each request still wraps exactly one .msg file.

How long are uploaded and converted files kept on the server?

Both the source .msg file and the resulting ZIP archive are removed from the server 24 hours after the conversion completes.

MSG to ZIP

A single ZIP archive that wraps the original Outlook .msg file, preserving its content and metadata without any conversion.