Brij said:
I just figured out that email issue with my user where emails
mysteriously open is being caused by pop3 connection to his Blackberry
device. When device downloads emails they open the email on the exchange
server. Tested this multiple times all with same results. Can you find
out if there is a setting which will override this? Thx, Brij.
Is there an add-on installed into Outlook for the Blackberry? Or do the
Blackberry merely makes its own separate POP connection to the mail server?
For multiple e-mail clients to share the same mailbox, each must have the
option "leave message on server" enabled. The default behavior of POP is to
issue a RETR (retrieve) to get the message followed by a DELE (delete) to
cleanup the mailbox. "Leave message on server" eliminates the DELE command
so the message remains in the mailbox.
Whether an item is old or new is not tracked in a POP account. The new/old
status of a message is tracked in the e-mail client. So an e-mail client
that retrieves all "new" e-mails is retrieving e-mails that are not
currently in its UID (unique identifier) list (i.e., "new" is an e-mail
found on the server that hasn't yet been retrieved by that particular e-mail
client). A different e-mail client will still those messages as new that
were retrieved by some other e-mail client. E-mail clients don't magically
share their UID lists. What's new to an e-mail client is based solely on
what items are NOT in its own list of previously retrieved items. By
leaving messages on the server (no DELE command after the RETR), multiple
POP e-mail clients can retrieve the same messages whether or not they have
been also retrieved by other e-mail clients.
If you enable the "leave messages on server", well, they're left on the
server in your mailbox. Since you have a quota for how large your mailbox
can grow, you will need to periodically use the webmail interface to your
account to delete the old garbage out of your mailbox (which shows as the
Inbox folder in the webmail interface) to prevent consuming all the disk
quota for your account. If you don't do the manual cleanup, eventually your
mailbox fills up and further incoming e-mails will get rejected as there is
no longer any space to store them. Some e-mail clients, like Outlook, have
an option to "delete after N days from when retrieved". This helps to
cleanup your mailbox so its disk quota doesn't get all eaten up. Specify an
interval that is more than long enough to account for multiple e-mail
clients accessing the same mailbox, like 15 or 30 days. With "leave
messages on server", multiple e-mail clients polling the same mailbox can
retrieve the same e-mails (because the other e-mail clients didn't delete
those messages after retrieving them). With "delete N days after retrieve",
you have that long for all your e-mail clients to grab a copy of an e-mail
before one of those e-mail clients deletes it from the mailbox.