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//! ### Sending Messages
//!
//! This section explains how to manipulate emails you have created.
//!
//! This mailer contains several different transports for your emails. To be sendable, the
//! emails have to implement `Email`, which is the case for emails created with `lettre::builder`.
//!
//! The following transports are available:
//!
//! * The `SmtpTransport` uses the SMTP protocol to send the message over the network. It is
//!   the preferred way of sending emails.
//! * The `SendmailTransport` uses the sendmail command to send messages. It is an alternative to
//!   the SMTP transport.
//! * The `FileTransport` creates a file containing the email content to be sent. It can be used
//!   for debugging or if you want to keep all sent emails.
//! * The `StubTransport` is useful for debugging, and only prints the content of the email in the
//!   logs.

#[cfg(feature = "file-transport")]
#[cfg_attr(docsrs, doc(cfg(feature = "file-transport")))]
pub mod file;
#[cfg(feature = "sendmail-transport")]
#[cfg_attr(docsrs, doc(cfg(feature = "sendmail-transport")))]
pub mod sendmail;
#[cfg(feature = "smtp-transport")]
#[cfg_attr(docsrs, doc(cfg(feature = "smtp-transport")))]
pub mod smtp;
pub mod stub;