I run an email based service and while I send most email on my own I have been using the following providers for fall-back (for inbox providers that have very strict policies). - https://serversmtp.com/ - https://aws.amazon.com/ses/ I prefer SES for a number of reasons: - The price is about the best you will get. - You can DKIM sign messages yourself if you want (although IIRC they remove the ability to verify... - Source: Hacker News / about 2 years ago

Https://serversmtp.com/ It is the only one I have used, it offers both SMTP and a REST API of which I have only used REST, at $COMPANY it was valued as "the cheapest working service to send thousands of email/month from a few email address (the usual noreply@xxx.yy)". - Source: Hacker News / over 2 years ago

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