Thanks for all of the replies!
I made a minor mistake in my original post. The email address that the message was sent to
was not my main business address, but rather an administrative address that operates mostly on an internal network. (there actually isn't a "main" address, but rather multiple addresses for multiple departments. I was quite tired when I wrote the original post, and am equally tired now. So, I apologize for any spelling or grammar mistakes)
Maybe some one else used your email address when talking to them.
That isn't likely.
The email address was for an administrative staff account, and is incapable of sending out emails to addresses on different domains/networks. (it can receive emails, but cannot send)
So, it is impossible for a coworker to have contacted UK2 using this specific address, or for anyone to have used the address to contact them on my/our behalf.
In today's world you cannot possibly keep track of where and how you leave your email anymore, so it might as well could have come from one of their partners you dealt with that shared the contact database. Just hit unsubscribe and move on. I am more than sure a company like Midphase will honor the subscription status.
I've been in contact with a UK2 provider in the past, but never used this specific email address.
I can't quite recall which address I used to contact UK2. I'm not even sure if I used a business email address to contact them, or if I used a personal address.
i would be wary of using any unsubscribe link as i once got such a marketing email from Comodo, looked genuine, then header showed a hostname pertaining to be from Comodo, but when i checked the originating IP it was from Russia, even hovering over links showed the hostname the header displayed. I contacted my Comodo contact about this and gave him the header details which he called me back saying they were fake and to report the email to the abuse department.
I tend to avoid unsubscribe links until I receive a minimum of two emails, just to verify that I am indeed subscribed to a newsletter. I've never actually dealt with a talented spammer capable of masking the header information. Wasn't even aware that was possible with todays email technology. Will certainly keep that in mind from now on, though.
Have you solved your issues already?
Yes, and no.
I still can't quite explain how UK2 / Midphase (if it truly did come from them) got a hold of the administrative email address. However, the address has since been deleted from our network, and the administrator has been assigned a new email.
Thanks again for all of the replies.