You see this https://imapsync.lamiral.info/ ? It's only for mails but it's a great solution. Source: 7 months ago

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... Source: 7 months ago

Check out imapsync (https://imapsync.lamiral.info/) - I am using it since years and migrated tousands of mailboxes without any problems. Source: 12 months ago

I would use https://imapsync.lamiral.info/ for email and sure there is another tool for contacts and calenders. Source: about 1 year ago

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. Source: about 1 year ago

Implementing email authentication solutions like DMARC with an enforced policy is proven to drastically minimize the chances of BEC. You can learn about DMARC here: https://powerdmarc.com. Source: about 3 years ago

Stop attacks with DMARC and protect your email service free from email spoofing Phishing PowerDMARC tool. Monitoring SPF DKIM, DMARC Record, BIMI MTA-STS TLS-RPT. Visit the website and Get a free real time email authentication assessment for your organization. Source: about 3 years ago

You can try https://powerdmarc.com it starts from 8 usd a month, you get the DMARC analyzer along with MTA-STS and TLS-RPT. Source: over 3 years ago