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?

Thanks in advance

Thomas