is there some foss email inbound software that can take email "in" using wildcards or restricted email ids and dumps the same into a DB? i have to apply regex

is there some foss email inbound software that can take email "in" using wildcards or restricted email ids and dumps the same into a DB? i have to apply regex to the email body and other stuff and keep only the relevant bit . i see the managed softwares but i want something on my own vps.