"OK with me" or "OK by me"

[TerDale]

Hi all,
When I'm proposed a new date for a meeting, and there's no problem for me, what is considered the most correct answer
1. "OK with me"
2. "OK by me"
3. "OK for me"
TIA

 

[Fazzu]

"Ok for me"

 

[DavyBCN]

Hi all,
When I'm proposed a new date for a meeting, and there's no problem for me, what is considered the most correct answer
1. "OK with me"
2. "OK by me"
3. "OK for me"
TIA

1 and 3 are equally acceptable in this situation. Colloquially people often used 2 also.