Re: [Dovecot] plugin development: retrieve username -d -f inside plugins

struct mail_user->username has it. How you get to struct mail_user depends on where you want to access it from. Note that each process is capable of handling multiple different users (although it's not commonly done).

i'm not sure to understand the last part. mail_user->username is a char *, right ? What is the content of the string if there is multiple users ? Thanks for your answer btw.