Odd emails from mycncuk, blank emails with no subject title

[m_c]

Humm a little concerning, I'm just doing the school run and sorting dinner then I'm gonna jump on this, could you check the email headers (message source) and see if anything stands out to you, or copy the info here for me to look at ?

There hasn't been any updates to vB recently or any changes by me, but there is an update waiting for me to install, this fixes some compatibly issues with PHP 7 and I need to see what else...

I'll see what o can find out and post back shortly, cheers.

I've just had a look, and I must have binned the blank messages via spam as they're not in my trash.
I also had a look for some messages with blank quotes, but can't find any. I'm wondering if they're maybe a gmail formatting issue, as all message are showing quotes OK just now..