If you're doing maintenance on a server you have three ways to communicate it.
- Send one e-mail per domain.
- Send one e-mail per customer.
- Post it on the status page and hope that they have seen it before the tickets start flooding in.
Not one of them is perfect. We have customers with 30 websites and they are not all on the same server. It can happen that 5 accounts are on server1 and 25 accounts are on server2.
What if we're planning maintenance on server2? Looking at the options we have, we can either send them 25 e-mails or just 1. Obviously you only want to send one e-mail. Doing that assumes your customer knows on which server they are and often they don't remember that.
This isn't very customer friendly.
The solution would be to have an extra merge field that includes all domains of server2 for customers that receive an e-mail. That way we can tell them which domains are affected by our maintenance.