dkap - 4:13 pm on Feb 25, 2013 (gmt 0)

"What are some of the rules of thumb other savvy webmasters and members in here use?"

If I'm less than 100% sure of the validity of any email, I always hover over embedded links to see what they point to before actually clicking on them. Unless they're doing something sneaky with close misspellings (or 1 vs. l), it's usually quite obvious.

Dan