how change incoming e-mail data

how change incoming e-mail data

hi,

I want to ask a question. 

Incoming data from customer comes as trial-member@mail.com , only change the e-mail address of the customer from this customer source. for example: 
Customer supply: whatclinic
Lead email: trial-member@hotmail.com or trial-member@gmail.com 
The data comes this way, and I want to change it.

Change your mail addresses in incoming data from whatclinic. 

trial-member@mail-whatclinic.com if the sender is only whatclinic.

Is this possible?