AWS SDK for .NET Documentation
MessageBody Property
AmazonAmazon.SQS.ModelSendMessageRequestMessageBody Did this page help you?   Yes   No    Tell us about it...
The message body to send. The maximum allowed message size is 64 KB.
Declaration Syntax
C#
public string MessageBody { get; set; }
Remarks
The following list shows the characters (in Unicode) allowed in your message, according to the W3C XML specification (for more information, go to http://www.w3.org/TR/REC-xml/#charsets). If you send any characters not included in the list, your request will be rejected. #x9 | #xA | #xD | [#x20 to #xD7FF] | [#xE000 to #xFFFD] | [#x10000 to #x10FFFF]

Assembly: AWSSDK (Module: AWSSDK) Version: 1.5.60.0 (1.5.60.0)