I know that I am not having spam issues and neither are my co-workers when I ask them. Having said that I don't doubt that you are having problems.
The email provider for MTS spreads the service over a number of servers and I wonder if the filter system on the server that you are on is having issues?
Sorry for the delayed reply. I am not sure why your spam count has spiked. Do the emails appear to be from mailing lists or advertisements for local stores? Or do they seem to be the more standard pharmacy or fancy pills type spam? The reason I ask is sometimes your email address can get out when you sign up for something and can be shared with other local businesses, this may explain it, depending on what you are actually getting.
Soam is nothing local. Fake Viagra, free stuff from many different legit businesses. Here is an example. They almost always have weird text at the bottom. Starbucks outback Steak House. :
Dear Coffer-Drinker: firstname.lastname@example.org,
As a special "thank you" for all-your years of continued-business at Starbucks, we've awarded you with a coupon for TWO (2) VENTI sized-complimentary cups of Starbucks coffee.
Why You-Ask? Because We Felt Generous!
How do you claim this coupon? Easy...simply follow the link that is provided-below to receive your reward now. That's it!
Your Coupon-Code #33007415231
You can.halt.future coffeeads-now by going.right here.
2885 Sanford-Ave SouthWest No.37719
Grandville, M.I. #49418
One thing I would suggest if you are receiving a lot of spam is login to the web mail interface. Find the offending messages, right click on them and select "Mark as Spam". Every time this is done it improves the quality of the spam filtering. Sure some of it can be automated but stuff still does sneak through and manually marking ones making it through as spam helps catch them for yourself and other users going forward.
Another strategy you can use is that a lot of spam has foreign email addresses. You can setup wildcard filters on the from address field to automatically delete messages from those countries. For example if you never expect to receive an email from the UK you could setup a filter to delete any message with a from address matching the wildcard pattern of *@*.uk I found this was helpful before MTS used the Microsoft email solution as lots of spam was coming from foreign countries. That won't catch them all but it can help.
There is a final more extreme strategy which I do not recommend but you could essentially delete EVERY incoming message except from ones you have filtered to be allowed. This is called white listing. Due to the high rate of failure this can cause it is not normally used. That said you could setup a filter such that your friends email@example.com is allowed but *@*.uk is then deleted. Layering of rules is tricky though.