MailKit

Essentials 2

Register your Mail extension and provide the view controllers that surface its interface.

• Cl
  MEExtensionManagermacOS 12.0+

  @brief Methods in this class allow the host app to interact with their Mail extension.
• Cl
  MEExtensionViewControllermacOS 12.0+

  A view controller that presents your Mail extension's interface within the Mail app.

Messages and Addresses 3

Represent the messages, recipient addresses, and annotations your extension inspects.

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  MEMessagemacOS 12.0+

  @brief Contains information about a mail message on which actions can be performed.
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  MEEmailAddressmacOS 12.0+

  @brief Contain information about an email address. This can include both valid and invalid email addresses.
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  MEAddressAnnotationmacOS 12.0+

  @brief An instance of this class can be used to change the visual style of recipeint email address token when user in composing a mail message.

Compose Sessions 4

Observe and influence the user's compose session and its lifecycle.

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  MEComposeSessionmacOS 12.0+

  @brief An instance of this class is associated with the lifecycle of a single mail compose window. This object associates the actions performed by the user in a mail compose window to a unique session
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  MEComposeContextmacOS 12.0+

  @brief An object encapsulating additional information about the message being composed.
• En
  MEComposeUserActionmacOS 12.0+

  @brief An enumeration corresponding to the action user took to start a new mail compose window.
• St
  MEComposeSessionErrormacOS 12.0+

  A structure that describes errors that occur during a compose session.

Message Actions 3

Act on incoming messages and decide how Mail should handle them.

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  MEMessageActionHandlermacOS 12.0+

  @brief Methods in this protocol can be used by a mail app extension to perform actions on messages as they are downloaded.
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  MEMessageActionmacOS 12.0+

  @brief An action that can be performed on a mail message.
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  MEMessageActionDecisionmacOS 12.0+

  An object that represents the action decision your extension returns for a message.

Decoding Messages 3

Decode received messages and present decoded content and banners to the user.

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  MEMessageDecodermacOS 12.0+

  @brief Methods in this protocol can be used by a mail app extension to decode messages.
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  MEDecodedMessagemacOS 12.0+

  @brief Contains information about a decoded message
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  MEDecodedMessageBannermacOS 12.0+

  @brief Contains security information in order to populate a banner in the message view.

Encoding and Signing Outgoing Messages 5

Encode, sign, and report the security state of outgoing messages.

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  MEMessageEncodermacOS 12.0+

  @brief Methods in this protocol can be used by a mail app extension to encode messages.
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  MEEncodedOutgoingMessagemacOS 12.0+

  An object that represents the encoded data and security details of an outgoing message.
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  MEMessageEncodingResultmacOS 12.0+

  @brief Contains information about an outging mail message after any security measures have been applied.
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  MEOutgoingMessageEncodingStatusmacOS 12.0+

  @brief Contains information about any security measures that will be applied to a mail message when it is sent or any errrors that occurred while verifying security status.
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  MEMessageSignermacOS 12.0+

  @brief Contains information about a message signer

Message Security 4

Convey signing, encryption, and trust information for messages.

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  MEMessageSecurityInformationmacOS 12.0+

  @brief Contains security information about a decoded message
• En
  MEMessageStatemacOS 12.0+

  Constants that describe the security state of a message.
• En
  MEMessageEncryptionStatemacOS 12.0+

  Constants that describe the encryption state of a message.
• St
  MEMessageSecurityErrormacOS 12.0+

  A structure that describes errors related to message security operations.

Content Blocking 1

Block remote content and other resources from loading in messages.

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  MEContentBlockermacOS 12.0+

  @brief Methods in this protocol can be used by a mail app extension to block content in mail messages.

Protocols 3

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  MEComposeSessionHandlermacOS 12.0+

  @brief Methods in this protocol can be used by a mail app extension to keep track of new messages composed by the user and to make changes to the recipeint email address tokens.
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  MEExtensionmacOS 12.0+

  @brief A protocol which must be adopted by the class set as extension's `NSExtensionPrincipalClass`.
• Pr
  MEMessageSecurityHandlermacOS 12.0+