An email address I frequently type into web forms is srs@.... Yesterday auto-correct started changing the srs to sis as soon as I typed @. While keeping the rest of auto-correct working I would really like it to leave srs alone.
In my searching for an answer I found Is it possible (and how do I do it) to change what word Auto-Correct chooses when I make a typo? But I'm not making a typo.
I found a variety of answers for both OS X and iOS, but none seemed to the point. The worst was decrypting a substitution file maintained by Safari to edit?!