Attribute Macro milter_callback::on_mail

#[on_mail]

Generates a callback function of type MailCallback that delegates to the annotated function.

As its sole argument on_mail takes an identifier to be used as the name of the generated function.

The on_mail callback handles processing of an envelope sender (MAIL FROM SMTP command). The signature of the annotated function must be as specified below.

Arguments:

• Context<T> – the callback context
• Vec<&str> – the SMTP command arguments, the first element being the sender address

Return type:

• Status – the response status

Examples

use milter::{Context, Status};

#[on_mail(mail_callback)]
fn handle_mail(context: Context<MyData>, smtp_args: Vec<&str>) -> Status {
    Status::Continue
}