Archiving the IMAP email will free up space on your email client or webmail. Some Email Service Providers(ESPs) have limitations for storing the data.
If you are exceeding the storage limit of your IMAP mailbox in Outlook, you can archive some emails to the drive location on your computer.
You can archive an IMAP email in Mozilla Thunderbird by following the steps given below:
IMAP(Internet Mail Access Protocol) is a protocol used to access emails from the email server. It is widely used by email programs such as Outlook and Thunderbird. IMAP creates a master copy of your emails in the server, and the email programs are used as a window to view the emails received from the email server. IMAP downloads a copy of your email from the email server, and the emails in the server can be accessed from your email account on any device configured with the IMAP server settings. Each IMAP account synchronized with the same email server follows a strict rule that if an email is read, deleted or flagged, then the change is reflected when you open the updated mailbox of the email account on any device.