Damn. I was going to move to them at the end of this year when my VM (where I currently run my mail) is up for renewal. But if I now need to buy several Standard plans instead, and get several gigabytes of storage I don't need, then that's less appealing.
Runbox looks good. Any other suggested alternatives?
Zoho is actually very good too but they (like Gmail) enforce IMAP connection limits, so it you have a lot of folders etc or use mobile clients like K9 that open a connection per folder then you can get errors very regularly.
The above is true for Zoho on the free plans anyway, but it may be different for the paid ones. But the free ones have pretty much all you could need if you don't run into the high number of IMAP connections issues.
If you have enough accounts to make it worthwhile I think Rackspace is supposed to be very good, but last I looked you needed a minimum of 5 accounts (I only had 4) so it didn't work out:
They announced this on 18 August: https://blog.fastmail.com/2016/08/18/easier-user-management-...
Requiring three accounts now for instance would cost $150 a year minimum for the size I would have needed and unfortunately because I needed to rearrange my old grandfathered plan to re-organise accounts I'd have lost my previous plan.
Basically, Fastmail is good (very good), and you can still do admin type stuff by creating your master account first and creating your 'users' under it, but do look around if you are price conscious.
NOTE - I know you can't please everyone and that doesn't detract from the fact Fastmail was extremely stable, fast and had excellent customer support so don't take this as a 'Fastmail is bad' type post, because it isn't. Just look around and make sure you're getting the rid price/value for your needs.