>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?

>>ounds 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.

Hi Al,

think I will save the processing date as an optional possibility because when the emal is sent twice, it will happen within 24 hours.

Best regards

Thomas