got-your-back VS ImapSync

Got your back is the right tool https://github.com/GAM-team/got-your-back/wiki

alternatively, give them access to the user account and have them use Got Your Back ( https://github.com/GAM-team/got-your-back )

This tool from the creator of GAM will allow you to purge a mailbox: https://github.com/GAM-team/got-your-back

THe information it gives is inaccurate and it can sometime just stop. never had a good experience with it. for a couple accounts I'd go for GYB - https://github.com/GAM-team/got-your-back

GYB - gmail backup tool (I use the linux version, but it does have a version for mac).

if you don't want to spend you can also get only emails with "got your back". https://github.com/GAM-team/got-your-back

Either Google Takeout for everything, or GYB (got-your-back) https://github.com/GAM-team/got-your-back for email. You can try GAMADV-XTD3, but it can be super complex and I’m not sure if a standard account can use it or if you have to be super admin.

You see this https://imapsync.lamiral.info/ ? It's only for mails but it's a great solution.

I've had to do large email migrations before and honestly, imapsync is the way to go - https://github.com/imapsync/imapsync

Do your parents have a domain, or are they just using the provider's domain? I've set up my 1522+ to backup our mail accounts using MailPlus on the Synology, and IMAPSYC running on my lab server. But it's backup only, not archiving. That technology could be used to get to your desired state, but there's some work involved to make a secure connection from the internet to your Synology possible, sync/archive the mail, configure you parent's devices to find your device, etc.

Check out imapsync (https://imapsync.lamiral.info/) - I am using it since years and migrated tousands of mailboxes without any problems.

Check https://github.com/imapsync/imapsync

I would use https://imapsync.lamiral.info/ for email and sure there is another tool for contacts and calenders.

There are two solutions for this 1. Using a tool called imap-sync to sync all your emails (it has a great incremental sync). You can run it periodically via cron 2. Using the same or similar tool and export to a database.

If you want to sync from one IMAP server directly to another, there's also the very popular imapsync: https://github.com/imapsync/imapsync

Have a look at imapsync. Source: former web hosting sysadmin. Used this many times to move email.