The problem was, but no longer is, as ABD has recounted. Thank you Mr. Balmer.
I received from an USAF vet, and long-time pal, around 75 e-messages (presumably) carrying pics of military aircraft, @ 3+ MB ea. They arrived in several "squadons", each of several "flights", so I had to effect repeated "therapeutic" measures with my WedMail over 36 hours. The dispatcher of these missives/missles was unaware of what was happening until he returned home from a journey and found his own mailbox filled with bounced messages (100a and 100s he told me) from many (former) friends' adressses, whose mailboxes were already filled with the previous "attacks" so generously enabled by his Dell/Vista/M$M devices.
He then told me of the "mess" that is Vista and the "changing MS policies" that have fewer protections for his computer against spam, etc. etc. etc.
I offered (gave) him a gentle (genteel) lecture on why he should become a Mac-ster, despite his misguided self-concept of being quite technically savvy – which in fact he is – and why he will probably be a victim again, unless he changes his ways.
I've already sent him the URL for the Apple Store. We're going to talk again when the new iMacs appear.
We may just have a switcher in the making!