Re: Another ex-Nildrammer here
As I recall when Pipex took over Nldram they reckoned Nildram's support system was so good they rolled it out over the entire business. It went downhill when Tiscali took over but with few problems it wasn't an issue. Then TalkTalk tool over Tiscali and the combination of the two was the end of the line as far as I was concerned. I realised the best way to keep flexible for the future was to separate mail from ISP and even better to use a personal domain to separate email address from MSP should it become necessary. That last step hasn't in fact been necessary although moving both from one provider to another was.
ISP provided email is a trap. Use it as a short term measure if absolutely required but no more.