Earlier quoted context omitted.
I used to forward from my Google Apps account to regular GMail but different people would see my email address from my domain and others from gmail.com depending on their mail client. It's a minor nuisance but switching it around and routing everything to my apps account solved that inconsistency.
>> depending on their mail client Could you elaborate on that? Does the "Send mail as" feature in gmail not work sometimes?
That's probably fine in most cases but I was getting inconsistent results when people replied to my emails. Some were addressed to my domain and others to my gmail address.
I was also concerned that this might give me a slightly higher perceived risk in some SPAM filters.
Like I said earlier, none of this was a huge deal. It was just one of those inconsistencies that led me to routing all my mail to Google Apps.