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Very often I have to send msgs to a number of clients and wait for their
returned receipts. If not delivered or not read, I have to re-send a few
days later.
Please help if there is any good way to list out which client has return
receipts and which not?
Thanks very much.
returned receipts. If not delivered or not read, I have to re-send a few
days later.
Please help if there is any good way to list out which client has return
receipts and which not?
Thanks very much.