What are those image tags that appear in Facebook comments and Flickr photo descriptions?

Question

I have seen some strange text in some Facebook comments

Some random comment made by a user followed by some machine generated tag

[cid:image001.png@01CC0B1B.C4242F30]

While searching for such pattern in Google, I found that some Flickr photos are also titled in the same pattern.

I think this format is inserted when you reply the FB comments by e-mail and there is an image as signature, but I don't even know if it is possible.

Jader Dias · Accepted Answer · 2011-05-28 23:58:32Z

1

Is it possible to comment using e-mail. When someone has an image signature, the e-mail client can insert this code to refer the image.

answered May 28 '11 at 23:58

Jader Dias

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See RFC 2392 for the full documentation of the cid url scheme. tools.ietf.org/html/rfc2392
– mark4o
May 31 '11 at 16:16

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