How to collapse a mail after some period of time

You're referring to "collapsing" or "archiving" emails after a certain period of time!

There are a few ways to achieve this, depending on your email client or service provider. Here are some common methods:

Gmail:

  1. Enable the "Archive" feature: Go to Settings > General > Archiving > Enable archiving.
  2. Set a filter: Create a filter that moves emails older than a certain period (e.g., 30 days) to the "All Mail" label or archive them. To do this, go to Settings > Filters and Blocked Addresses > Create a new filter.
  3. Use the "Nuke" feature: Gmail has a feature called "Nuke" that allows you to delete all emails older than a certain period. To access it, go to Settings > Advanced > Nuke.

Outlook:

  1. Use the "Clean Up" feature: Outlook has a feature called "Clean Up" that allows you to move old emails to a separate folder. To access it, go to Home > Clean Up > Clean Up Folder.
  2. Create a rule: Create a rule that moves emails older than a certain period to a specific folder or deletes them. To do this, go to File > Manage Rules & Alerts > New Rule.

Other email clients:

  1. Thunderbird: Use the "Compact Folders" feature to remove unnecessary emails from your inbox. To access it, go to Tools > Account Settings > Server Settings > Compact Folders.
  2. Apple Mail: Use the "Smart Mailbox" feature to create a mailbox that automatically moves old emails to a separate folder. To access it, go to Mail > Preferences > Smart Mailboxes.

Third-party services:

  1. Sanebox: A third-party service that can automatically delete or archive old emails based on your preferences.
  2. SaneBlackHole: Another third-party service that can automatically delete old emails.

Remember to always backup your emails before implementing any of these methods, as they may permanently delete or move your emails.