I have a similar problem with a GMail account. I use my real name as the address for one of the accounts, and I have had that account for years. I have been astonished to see the number of people all across the world who have the same name as me and are using that as a GMail account address. I have found out that there is a math professor in Texas, a judge in Connecticut, an Anglican minister in England, a truck driver in Kansas, an IT person in England and others too numerous to count, all with the same first and last name.
If I get junk mail for one of them, I just delete it. For example the IT person in England signed up for match.com, and I get daily matches for 20-25 year old women within 100 miles of London. I delete those because my wife won't let me fly to England to meet some of them. But on occasion, I do get personal, medical, business or financial information directed to someone else. My approach is to reply to the sender, point out that I am a healthcare risk manager north of Seattle, and although I would be happy to help them with any patient safety or malpractice issues, I am not the actual person they are looking for, and I have deleted the email and any attachments. I probably get the most contacts for the judge in Connecticut, since I get a couple of emails per month asking if I can officiate at a wedding ceremony.
I sometimes wonder if anyone else is getting email intended for me.
PS: I forgot to mention: my favorite is the person in Australia who signed up for some Oz equivalent of Adult FriendFinder down there. I think he is in his mid-20's and I periodically get these private messages from these middle-aged Oz women looking for hookups with younger men. Some of them have nude photos attached, and I can say that Oz women sure tend to be tanned, usually all over.