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43 lines
1.2 KiB
Markdown
43 lines
1.2 KiB
Markdown
# Extract attachments from multipart emails
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When saved as plain text, emails may be saved as S/MIME files with attachments.
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In such cases the text file itself contains the multipart message body of the email, so the attachments are provided as base64 streams:
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```txt
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1 --------------060903090608060502040600
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2 Content-Type: application/x-gzip;
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3 name="myawesomefile.tar.gz"
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4 Content-Transfer-Encoding: base64
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5 Content-Disposition: attachment;
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6 filename="myawesomefile.tar.gz"
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7
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8 qrsIAstukk4AA+17Wa+jSpZuPfMrrK6Hvi1qJ4OxsfuodQU2YLDBUJDGrvqBeR7MaPj1N7D3
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9 OEmSxO8Wq7+3Y48dTWvXi8XvvKj8od6vPf9vKjWIv1v7nt3G/d8rEX5D/FdrDIxj2IrUPeE/
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10 j5Dv4g9+fPnTRcX006T++LdYYw7w+i...
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```
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You can use `munpack` to easily extract attachments out of such text files, and save them as properly named files.
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```sh
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$ munpack -f plaintext.eml
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myawesomefile.tar.gz (application/x-gzip)
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```
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## Further readings
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- [`munpack`][munpack]
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## Sources
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- [Extract attachments from multipart messages]
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<!--
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References
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-->
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<!-- Knowledge base -->
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[munpack]: munpack.md
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<!-- Others -->
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[extract attachments from multipart messages]: https://liquidat.wordpress.com/2013/08/07/short-tip-extract-attachments-from-multipart-messages/
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