[2023.08.23]    at MimeKit.MimeParser.ParseMessage(Byte* inbuf, CancellationToken cancellationToken)

[2023.08.23]    at MimeKit.MimeParser.ParseMessage(CancellationToken cancellationToken)

[2023.08.23]    at MimeKit.MimeMessage.Load(ParserOptions options, Stream stream, Boolean persistent, CancellationToken cancellationToken)

[2023.08.23]    at MailService.Mailboxes.MailMessageBase.GetProtocolAttachments(Boolean includeData, Int32 indexToFind, Boolean includeWinMailData, Boolean includeEventsAndTasksAsAttachments, Boolean mapi)

[2023.08.23] 08:07:34.369 GetProtocolAttachments Exception Info Stored: F:\SmarterMail\Domains\**************\Users\info\Mail\Sent Items\2013_2_26.grp:62 | Exception: System.FormatException: Failed to parse message headers.