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how_to:mail_not_downloading_from_isp [2009/05/18 10:16] – created mike | how_to:mail_not_downloading_from_isp [2018/11/14 10:45] (current) – external edit 127.0.0.1 | ||
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======Mail Not Downloading From ISP====== | ======Mail Not Downloading From ISP====== | ||
- | This normally happens because you have told VPOP3 to '' | + | This normally happens because you have told VPOP3 to '' |
See also: [[Making VPOP3 re-download POP3 messages from the ISP]] for details on re-downloading old messages. | See also: [[Making VPOP3 re-download POP3 messages from the ISP]] for details on re-downloading old messages. | ||
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=====Further Information===== | =====Further Information===== | ||
- | When VPOP3 connects to an ISP POP3 server it asks the ISP's POP3 server for a list of ' | + | When VPOP3 connects to an ISP POP3 server it asks the ISP's POP3 server for a list of ' |
VPOP3 compares the list of Unique IDs that are on the ISP's POP3 server now, with a list of Unique IDs for messages which it has previously downloaded, and VPOP3 will only download those messages whose Unique IDs it has not previously downloaded. | VPOP3 compares the list of Unique IDs that are on the ISP's POP3 server now, with a list of Unique IDs for messages which it has previously downloaded, and VPOP3 will only download those messages whose Unique IDs it has not previously downloaded. | ||
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Unfortunately, | Unfortunately, | ||
- | If you turn on '' | + | If you turn on '' |
- | In this case, the only course of action in VPOP3 is to stop it checking the Unique IDs, and just download all messages from the ISP and delete them immediately. To do this, go to the appropriate | + | In this case, the only course of action in VPOP3 is to stop it checking the Unique IDs, and just download all messages from the ISP and delete them immediately. To do this, go to the appropriate |
- | + | Also, note that VPOP3 remembers Unique IDs which it has seen but which have been deleted from the ISP in the last few days. This is because, a few ISPs have been known to make messages ' | |
- | + | ||
- | Also, note that VPOP3 remembers Unique IDs which it has seen but which have been deleted from the ISP in the last few days. This is because, a few ISPs have been known to make messages ' | + | |
There is still the slight chance that re-used unique IDs may cause problems - for instance if VPOP3 downloads a message, then another program deletes that message, and the ISP gives the same unique ID to a new message before VPOP3 reconnects. VPOP3 won't know that the message with that unique ID has changed, so it will treat it as old. In this case, the only solutions are to ask the ISP to change their POP3 server configuration so it won't re-use unique IDs, or at least waits a reasonable time (at least several days) before doing so, or make sure that no other software access the ISP's POP3 mailbox other than VPOP3. | There is still the slight chance that re-used unique IDs may cause problems - for instance if VPOP3 downloads a message, then another program deletes that message, and the ISP gives the same unique ID to a new message before VPOP3 reconnects. VPOP3 won't know that the message with that unique ID has changed, so it will treat it as old. In this case, the only solutions are to ask the ISP to change their POP3 server configuration so it won't re-use unique IDs, or at least waits a reasonable time (at least several days) before doing so, or make sure that no other software access the ISP's POP3 mailbox other than VPOP3. | ||
Also, making this setting change may cause duplicate messages to be downloaded if, for instance, the ISP doesn' | Also, making this setting change may cause duplicate messages to be downloaded if, for instance, the ISP doesn' | ||
+ | |||
+ | (See also [[VPOP3 Deleting Messages as Old Messages]] ) |