
Email continuity
There are dozens of online email archiving/continuity services that give you access to a cached version of your mailbox and store copies of your outgoing mail until you have got your recovery organised.
Currently their mx records point to mxtls.expurgate.net, a visit to www.expurgate.net redirects to cyren.com/en which has this apochryphal text:
91% Of All Cyberattacks Start With A Phishing Email.
If they are still down (and a visit to kcs.co.uk suggests that they might be) then it really is too little, too late.