Only thing I had was ->
X Receive Email from Administrators
Can't think of anything else that would affect this. Wonder if your simply hasn't gotten there or went into spam.
Pretty annoying getting an email from another company. It is basically one thing that really ticks people off and makes them leave a site, so it might achieve the opposite of the objective.
Of course every morning when I load this site, it comes up as a blank page due to lack of https support so getting an email from a site I hadn't interacted since it broke its https was pretty strange too.