CODEWITHSUNDEEP
c#emailencodingbase64mime-types
creatiive
creatiive

Reputation: 1093

Decoding attachment encoded as base64 string

I have an email that was sent to me with an attachment, however for some reason it came through as a base64 encoded string. Half way down the email it looks like this;

Content-Type: application/x-zip-compressed; name="me.zip";

Content-Disposition: attachment; filename="me.zip"

Content-Transfer-Encoding: base64



UEsDBBQAAQAIANeV9y5y6d5oG..... etc.

I have tried copying it in to an online base64 decoder (using utf-8) and then copying the resultant text in to a file and renaming as .zip, but this does not work. Can anyone help me get this attachment? There is no way of getting another copy.

Thanks for any help.

Upvotes: 0

Views: 3559

Answers (1)

dbc
dbc

Reputation: 117344

Since you tagged this as "c#" I reckon you are OK writing a brief code snippet, in which case you can use Convert.FromBase64String, then write the resulting byte array to a file.

The linked Microsoft documentation shows an example of just what you want -- reading a file, decoding it from base 64, and then writing the result.

Upvotes: 1

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