Is one letter email address okay?

hello, I have found a very short domain for myself, let's say it is

sas.ha

not this one exactly, but same three character length with two character tld. since the domain is short, i was thinking maybe to also make my email shorter, something like

then i found this blog post where author did the same thing as me and it didn't go well. i work as a developer so these email addresses will be used a lot, should i go for this? what can i do? what can't i do? is there any minimum character length that i should have to avoid being labeled as spam? anything else to consider?