Mail servers.

One of our satellite offices uses a different email domain than we do and their email is handled by a local isp. Other the past three years I reckon they’ve changed the name to use for retrieving pop mail at least three times, probably the same for outgoing. Each time they don’t bother telling the customers that they are doing this, so the first you find out is when you eventually get hold of them on the phone and they tell you its changed. I reckon we’re also paying at least £25 a year for email forwarding and they want £15 to change the iptags too. If it wasn’t for the fact that we need to move them onto our real domain, I’d have changed to another isp that charges £2.50 a year for email forwarding.