Emails arnt coming through to my hotmail!

Emails arnt coming through to my hotmail address. I've tweeted microsoft help who suggested posting here for moderator  support. No changes to setting, some emails coming through, others not, I've sent multiple tests from other email accounts to check this. Its the same on computer or mobile, occasional email getting through but the rest are lost. I seem to be able to send emails fine. Ive not changed any settings and emails arnt appearing in my junk folder. Any suggestions??