adding M-dot logo to email signature?

Personally, I'd think it as sad unless they were a personal trainer, tri coach or something where it would be relevant.  I understand that people are proud of their accomplishments but damn!

What do you think when you receive an email from someone with an SSI logo, or something about National Badminton Champion, in their sig line?

That's probably the same reaction you'd get from others. 

I was told not to include anything irrelevant to your field in your professional correspondence.  It'd only make you look unprofessional. 

You may do whatever you want in your personal emails.

It's easier to delete something on an email signature once you get sick of it.

I have received several emails from staff at WTC and they do not have it in their own signature.

Perfectly acceptable... as long as you're the type of person who would add the Golden-Arches logo to your emails after you've eaten a Big Mac...

I wouldn't do it.

That being said, if your goal is to let people that you email know that you've done and IM, I think it would be a pretty effective way to accomplish that.

Not everyone knows what the M-Dot logo is, so you might want to accentuate it with something like

(insert M-Dot logo here)
Ironman (insert name of IM here)
2.4 mile swim, 112 mile bike, 26.2 mile run...All in one day.
(Insert finishing time here)
(Insert overall and AG placing here)
(Insert upcoming IM races planned here)

X2

You beat me to it!!!

Told my wife if and when I finish IMLP I would like to be addressed with the salutation "Ironman " before all conversations

I put my splits in my Outlook signature

Lame - honestly, unless the recipient of your email is a triathlete, he/she may not fully appreciate what the accomplishment really means.  Before I started tris, an ironman just sounded like long distances but never really gave it much thought beyond that.  I've still only done sprints but I have a new appreciation for what a HIM and IM really means.  

On the other hand, before I started running about 2 years ago, I never thought I'd run anything longer than a 5k...ever.  With some encouragement from my wife, I decided to tackle half marathon training.  I got hooked pretty quickly and now started training for my first 26.2 in December.  When I decided to attempt a triathlon last year, I looked for the shortest pool swim I could find (200 yds) because I was gassed after about 50 yds.  I'm still not a fast swimmer but just completed my first non-stop one-mile OWS this morning.  All of a sudden a HIM seems within reach next year (with proper training of course).  IM is still a dream somewhere out there in a future.

I'm both, and I still wouldn't consider it.  I think it would just be odd, and scream "look at me" a little too much.

FTW!  Only because that's what m-dot means to me too.