EnvelopeGmailMessageID Property
Gets the Gmail-specific message-id.

Namespace: MailBee.ImapMail
Assembly: MailBee.NET (in MailBee.NET.dll) Version: 12.5.0 build 687 for .NET 4.5
Syntax
Copy
public string GmailMessageID { get; }

Property Value

Type: String
A string containing a positive 64-bit number, or a null reference (Nothing in Visual Basic) in case if this value is not available (usually, if the server is not Gmail or GmailMessageID was not requested when downloading envelopes).
Remarks
Gmail provides a unique message ID for each email so that a unique message may be identified across multiple folders. To use this value, make sure the mail server is Gmail-compatible ("x-gm-ext-1" capability must be listed in GetExtensions results).
See Also