I have a personal email address with a modern 'generic Top Level Domain' (gTLD) name. I use this for ALL my public communications, but TalkTalk barfs in many areas about using such email addresses.
It will send marketing emails to me at that address, but then won't let me (or any one else) use anything but plain vanilla old style domains (.com, .gov, .uk). This community also doesn't let you use such domains.
It is becoming a showstopper issue.
TalkTalk should allow all valid email addresses from properly registered and valid gTLD domains.