Unregistering Mail / MD5

[Barry Gould]

At 05:40 PM 2/8/2003, Chris Wilkes wrote:
>Alternatively, I'm working up an MD5 checksum of just the email's body
>and recording its spam status and time seen into a database file.  That
>way you can tell if an email that's been delivered has been run through
>BF before.  Once I get it working I'll publish it, maybe making into the
>contrib/ directory.

Although I can see that would work for people who keep the exact original 
message, I usually do manual corrections with my messages after I see them 
in Eudora.

This means they are mime-decoded, attachments are separated, and headers 
are added (X-Persona, Status, etc).

Therefore, MD5sums are unlikely to match.

I do keep backups of all mail (with procmail) for a few days, but it is 
quite inconvenient to use them to correct bogofilter, and I have only done 
so when absolutely necessary (such as before mime/base64 decoding was 
implemented).

Thanks,
Barry