• The default port is now 587.

• The SMTP struct is now initialized with a TLSMode enum instead of a useTLS Bool, allowing more configuration options:

/// TLSMode enum for what form of connection security to enforce.
    public enum TLSMode {
        /// Upgrades the connection to TLS if STARTLS command is received, else sends mail without security.
        case normal

        /// Send mail over plaintext and ignore STARTTLS commands and TLS options. Could throw an error if server requires TLS.
        case ignoreTLS

        /// Only send mail after an initial successful TLS connection. Connection will fail if a TLS connection cannot be established. The default port, 587, will likely need to be adjusted depending on your server.
        case requireTLS

        /// Expect a STARTTLS command from the server and require the connection is upgraded to TLS. Will throw if the server does not issue a STARTTLS command.
        case requireSTARTTLS
    }

4.0.0 Migration Guide

• User struct now nested in Mail struct to avoid namespace issues (69). Create a user like so:

let sender = Mail.User(name: "Sloth", email: "sloth@gmail.com")

• User properties are now public

• The optional accessToken parameter of the SMTP struct has been removed. If you are using the authorization method XOAUTH2, pass in your access token in the password parameter instead. For example:

let smtp = SMTP(
    hostname: "smtp.gmail.com",
    email: "example@gmail.com",
    password: "accessToken",
    authMethods: [.xoauth2]
)

• Fixed a bug where the wrong Attachment was used an an alternative to text content when a Mail was initialized with multiple Attachments (67)

3.0.0 Migration Guide

Initialize SMTP

Before 3.0.0:

public init(hostname: String,
            email: String,
            password: String,
            port: Port = Ports.tls.rawValue,
            ssl: SSL? = nil,
            authMethods: [AuthMethod] = [],
            domainName: String = "localhost",
            accessToken: String? = nil,
            timeout: UInt = 10)

After 3.0.0:

public init(hostname: String,
            email: String,
            password: String,
            port: Int32 = 465,
            useTLS: Bool = true,
            tlsConfiguration: TLSConfiguration? = nil,
            authMethods: [AuthMethod] = [],
            accessToken: String? = nil,
            domainName: String = "localhost",
            timeout: UInt = 10)

Renamed

• SSL renamed to TLSConfiguration

Removed

• Port typealias

Other Changes

• Mail properties are now public