The default quota on Reed e-mail accounts is 500 Megabytes. The quota is implemented by the server, and no option exists in any mailing client to change it. If you find yourself receiving files containing large attachments, you may quickly run out of space on your Reed e-mail account. Once at or over quota, your account will no longer be able to receive messages. Thunderbird can help manage your webmail quota only to a point - if your account is at or over quota, Thunderbird will not be able to successfully delete your mail, and you will have to log in through Webmail to clear out messages. If your account is below the quota limit, you can manage your space usage via Thunderbird with the following methods:
- Empty your Trash Folder: Empty your trash regularly. Mail in your Trash folder still counts against your quota. If you've received some large files, and then sent them to your Trash folder, they're probably just hanging around, taking up space. To empty the trash, Ctrl (or Right) - click on the Trash bin in Thunderbird and click Empty Trash.
- Check your Sent Folder: By default, Thunderbird saves all sent messages to your Sent Mail folder. Deleting messages from your Sent folder will move them to the Trash.
- Use your Home Server: Your Home Server provides you with 1000MB of storage space where you can store large attachments. To download attachments, click File > Attachments > Save All Attachments. You may choose a location on your computer (not recommended for file backup reasons) or on your Home Server.
- Store Mail Locally: You can create any number of folders under the local folders heading in Thunderbird. Right-click (or control-click) the Local Folders icon and pick "New Folder" to create a new folder. Be aware that once you've copied mail to a local folder it is only on your machine, not on the server, so keep good backups!
- Export Messages and Folders via Add-on: Under the Tools menu select Add-ons. Search "ImportExportTools", install it, and refresh thunderbird. To export a single message select the message and under File select Save Selected Messages and select the preferred form (mbox, eml, etc.). When prompted name the file and save in a selected lovation To export a whole folder. Select the folder. Under Tools select ImportExportTool and select Options. Under the Export Directories tab select "Export as mbox file" and browse to select which folder the newly exported mbox files should go. Once the changes have been made under ImportExportTools select "Export Folder." Hit OK and the folder will be exported.
- Deleting Attachments: If you'd like to keep the text of an email, but remove the large attachment, do the following: Select the message. From the Message menu, choose Edit Message as New. From the compose window that opens, select the attachment in the upper right corner, and hit the Delete key. Now click the Save button in the compose window. The message is now saved in your Drafts folder, but you can move it to where you'd like it to be.
Thunderbird versions 1.5 and above include an attachment bar in every message with an attachment. Control or right-clicking on this bar will bring up a context-menu that allows you to manipulate the attachment(s) of the message.