Watermarking, what does it actually consist of ...
spamlists at coders.co.uk
Fri May 23 12:42:34 IST 2008
>> The only problem I see is converting the date in to a unix time stamp...
> Well, maybe ... dont know yet.
> So .... just to make things clear ... its a MD5 hash ... converted to
> base64 ... and when it comes back into MailScanner again it
> recalculates the hash ... with the info from the mail ... and then
> compares the two string hashes ?
> Or am I totally lost here .. ?
Yes exactly right - the Date is calculated from the Date field *NOT* the
The header is actually
X-MailScanner-Watermark: 1213961026.89637 at zP9SzydkvnIBOgx58U4azQ
where the number before the @ is the expiry of the token.
More information about the MailScanner