How to Clear Mail Cache on Mac? How to Delete It on Mac?

This guide explains how to clear the Mail cache on your Mac, addressing common issues like slow performance and email loading problems. The macOS Mail app, while popular, can become sluggish due to a large cache. This article details what the mail cache is, why clearing it is beneficial, and how it impacts performance. It also provides both manual and automated methods for clearing the cache.

Understanding the Mail Cache

The Mail app stores downloaded emails and data in a cache file for faster access. However, an overly large cache can lead to performance issues. This cache is often one of the largest on your Mac, especially with frequent email use and large attachments.

Reasons to Clear the Mail Cache:

• Crashes or unexpected app closures
• Slow performance or lengthy startup times
• Failure to load emails or check for new ones
• Inability to send emails
• Attachment loading problems
• Low storage space

Clearing the Cache Doesn't Delete Emails:

Clearing the cache removes only the cached copies of emails. The next time you open the app, it will re-download them. Initial app opening might be slower due to this re-download.

Impact on Mac Performance:

Clearing the cache can resolve performance issues caused by a corrupted or oversized cache file. A fresh cache file often improves app responsiveness and email loading speeds. It can also free up significant storage space.

How to Delete the Mail Cache:

Method 1: Manual Deletion

1. Open Finder and navigate to ~/Library/Mail.
2. Locate the folder starting with "V" (e.g., V10, V8, V9).
3. Move this folder to the Trash and empty the Trash.

Additional Steps for Optimal Performance:

• Delete Junk Mail: Regularly delete junk mail to prevent cache bloat. Use the "Erase Junk Mail" function within the Mail app.

• Remove Mail Attachments: Large attachments consume significant space. Delete unnecessary attachments individually or use a Mac cleaner app.

• Empty the Trash: Ensure you empty the Trash after deleting emails to fully reclaim disk space.

• Prevent Attachment Downloads: In Mail settings, disable automatic attachment downloads to reduce cache size.

Method 2: Using a Mac Cleaner (e.g., MacKeeper's Safe Cleanup)

Mac cleaner apps offer a simplified approach to clearing the mail cache and other junk files. These tools typically provide a user-friendly interface for identifying and removing cache files, attachments, and other unnecessary data.

Alternative Email Management Strategies:

Consider using alternative email clients, webmail services, or accessing emails primarily from mobile devices to reduce reliance on the macOS Mail app and its cache.

This comprehensive guide provides various methods to manage your Mail cache, ensuring optimal performance and storage space on your Mac. Remember to choose the method that best suits your technical comfort level.

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