Comment by deanmoriarty
6 years ago
Interesting. Would you be of the opinion that sending mail from my personal @gmail.com address would then have much higher chances of being successfully delivered to other people (most of which will inevitably be at another @gmail.com address) than those sent from my "portable" @custom.domain address?
if you're sending it inside the gmail interface to a gmail address I doubt it makes any difference
sending to outside gmail I suspect it will count against you (though major providers likely have special treatment for Google's MXes)