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--- how_to:vpop3_re-downloading_old_messages_from_isp_pop3_server [2013/05/28 07:47] – [SRVRUIDL.DAT in use by another program] paul
+++ how_to:vpop3_re-downloading_old_messages_from_isp_pop3_server [2026/01/05 09:31] (current) – paul
@@ Line 10: / Line 10: @@
 With recent versions of VPOP3 you can tell if this has happened by looking at the 'Received' headers of the message. The line which the VPOP3 POP3 collector adds shows the UID in the header line (UIDL=....), and you can compare the downloaded copies of a particular message. If the UIDs are different for the same message, then the ISP has re-assigned the messages' UIDs, so VPOP3 sees all the messages as ones it has not seen before
+======VPOP3 v4 or earlier======
+VPOP3 v2 or earlier stored a list of downloaded messages in a file called SRVRUIDL.DAT or SRVUIDLx.DAT, which could be affected by other software, so that needs to be checked as well, as described below
 =====SRVRUIDL.DAT file being deleted=====

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