InternetMailMessage.UID

Read and write.Type: Array.
Contains a string, which identifies a message. The given identifier is unique within the mail box and stays immutable over the time of this message exists on the server. When partial messages are united, the result message can contain several identifiers, and so the property has the Array type.
Thin client, server, thick client, external connection, Mobile application (client), Mobile application (server).InternetMail, method GetUIDL

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