Specific emails from one sender not coming through

[Vivienne1234]

I'm not receiving emails from a specific account. I've checked my junk and they're not in there. The sender has checked and definitely has the correct sky email address for me. Any ideas how I can start receiving these emails? I assume they are being blocked somehow? Thanks 

[caesarome]

Are these emails bouncing back to the sender and if so what is the error message ?

Have you checked that any filters you have setup could be causing an issue with this ?

[Vivienne1234]

Thanks for your email, I've just asked about the bounce back / error message and awaiting a response. 
I'm not sure if I have any filters set up, none that I'm aware of. How would I check this?

many thanks for your help 

[caesarome]

@Vivienne1234 

Login to your online account:

https://skyid.sky.com/signin/email/

Go to Settings > More Settings > Filters.