Mail.scale

mail.scale is a command-line tool used to scale and manipulate email messages. It's a part of the mail package, which is a collection of email-related utilities.

Here are some common uses of mail.scale:

1. Scaling: mail.scale can be used to scale the size of an email message. For example, you can use it to compress or decompress a message, or to resize an attachment.
2. Format conversion: mail.scale can also be used to convert the format of an email message. For example, you can use it to convert a message from one email client's format to another.
3. Filtering: mail.scale can be used to filter out certain parts of an email message, such as attachments or headers.

Some common options used with mail.scale include:

• -c: Compress the message
• -d: Decompress the message
• -s: Resize the message
• -f: Convert the format of the message
• -x: Extract attachments from the message

Here's an example of how you might use mail.scale to compress an email message:

mail.scale -c < input.msg > output.msg

This would compress the input message and write the output to a new file called output.msg.

Keep in mind that mail.scale is a powerful tool, and you should use it with caution. It's always a good idea to test it on a small sample of messages before using it on a large batch of emails.