Multiple emailKeyPrefix in the same function

[toddgdaugherty]

Can I add more than one emailKeyPrefix value? I'm trying to decide whether to create multiple folders within a bucket. One for each email address on the same domain. I'm considering this just in case I need to manually search for something. I'm not really sure what the best practice is for SES. I assume that if I decide to go that route, I'll need to create a separate Email Receiving rule for each address. What I don't know however is whether I can use the same Lambda function for multiple emailKeyPrefixes. Is there any way to check all subfolders within a bucket using a wildcard or even better for versatility, list multiple emailKeyPrefixes? If not, I assume I would also have to create a separate Lambda function for each rule, correct? Is it even worth it? Thoughts or any experience with this would be much appreciated.
Signed,
Obsessive compulsive planner.