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Posted 17 Sep 2008
Licenced CPOL

Easily Retrieve Email Information from .EML Files

, 30 Apr 2010
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A wrapper C# class that extracts email fields from EML files


This article is not the best way to do this. Please see EML_ReaderEx.aspx for a better way.

I know parsing .EML files is easy enough to do, but here it is in a wrapper class, all nice and tidy. This comes in real handy if you have a service that needs information that is emailed to the box. It has the usual "To", "CC" fields, along with a collection of x-receiver and many other fields. It will give you both plain text and HTML bodies, provided they are in the EML. Dates are converted to DateTime.

Using the Code

To use this class, just get the FileStream for the .EML file and put it in the constructor of the EMLReader class.

FileStream fs = File.Open(sFile, FileMode.Open, 
EMLReader reader = new EMLReader(fs);

Then, you just retrieve the email properties through the properties of the wrapper class.

foreach(string xReceiver in reader.X_Receivers) 
   // do something with xReceiver

I covered all the email fields that I was concerned about, but there may be some that were left out. However, adding support for new fields in EMLReader is fairly straightforward.

Points of Interest

I worked on this at about the same time that I worked on a wrapper class for MSG files. Big difference in difficulty. Where the EML wrapper class maybe took a day to read the spec and get right, the MSG wrapper class took a week. Probably, most of that time was due to the rather large learning curve on understanding Compound Documents and how MSG uses them. What a mess, and all that for such a legacy format. If Microsoft were to do it today, I'm sure it would all be in XML (attachments might make it a little lengthy though).


This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


About the Author

Software Developer (Senior) Lockheed Martin Services Inc
United States United States
No Biography provided

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GeneralThanks Pin
Kayetyusha3-Aug-11 16:58
memberKayetyusha3-Aug-11 16:58 

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