If you have access to a Windows computer, the simplest way to to save selected emails into an MBOX file is to use Aid4Mail which is available at modest cost - see www.aid4mail.com/email-conversion. Although Aid4Mail requires a Windows computer to run on but it is not limited to email systems on the Windows computer it is running on and can be used to create an MBOX from all types of email systems, including Gmail, Yahoo, Office etc.
A few emails systems allow you to save emails as individual files using click-and-drag but there may be problems in trying to save large numbers of emails using click-and-drag.
The first thing to do, when starting Aid4Mail is to select the email system where your emails are held.
Enter your personal details to retrieve the emails
Select the email folders containing the emails you want to save in the MBOX
Select a target format of MBOX
Select the target folder where the MBOX is to be saved.
Press Start to commence the process of saving the emails into the MBOX.
The information on this page about specific computer techniques is provided for information purposes only. Every reasonable effort has been made to ensure that the information is accurate and up to date at the time it was written but no responsibility for its accuracy, or for any consequences of relying on it, is assumed by me. You should satisfy yourself, before using any of the techniques, software or services described, that the techniques are appropriate for your purposes and that the software or service is reliable.
This page was lasted updated in November 2016. Disclaimer