>Hi there,
>
>one functionality of my application ist to receive emails and process them. Sometimes the provider sends these mails twice and I want to prevent that these are processed.
>I think about saving to values in a table, the first line of the mail and a checksum of the mail body calculates by sys(2007).
>Before processing the content I would look up these values in the table and if found, skip this mail.
>Does this make sense or are there better ways?
Sounds like a good approach to me. You would probably need to ensure the "duplicate" message body doesn't have anything like a unique ID, date/time stamp etc.
Regards. Al
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