async-mailer

An async dyn Mailer trait with runtime-pluggable Outlook (Office365) and SMTP implementations.

Example:

```rust // Outlook configuration, e.g. from command line arguments or environment variables. let mailerconfiguration = MailerConfiguration::Outlook { tenant: "", appguid: "", secret: "" };

// Alternative: SMTP configuration, e.g. from command line arguments or environment variables. let mailerconfiguration = MailerConfiguration::Outlook { host: "smtp.example.com", port: 465, invalidcerts: SmtpInvalidCertsPolicy::Deny, user: "", password: "" };

// Create a Box<dyn Mailer>. // The implementation is Send and Sync and may be store e.g. as part of your server state. let mailer = newmailer(mailerconfiguration).await?;

// Build a message using the re-exported mail_builder::MessageBuilder'. // For blazingly fast rendering of beautiful HTML mail, I recommend combiningaskamawithmrml`. let message = MessageBuilder::new() .from(("From Name", "from@example.com")) .to("to@example.com") .subject("Subject") .text_body("Mail body");

// Send the message using the implementation-agnostic dyn Mailer. mailer.send_mail(&message).await?; ```

Roadmap

DKIM support is planned to be implemented on the SmtpMailer.

Further mailer implementations are possible. Please open an issue and ideally provide a pull request to add your alternative mailer implementation!