in message
The messages in my inbox are automatically deleted after a month.
Are you using the auto-archiving feature in Outlook> If so, it's up to
you how long to wait before committing an action against items in a
folder when archiving is enabled.
If not using auto-archiving then why are the mails deleted from the
Inbox in Outlook? The server might delete old mails that it has in your
mailbox on their server host but Outlook is running locally on your
computer and they don't have any control over what mails are stored in
its local message store. Once the mails are in Outlook's mailbox,
doesn't matter if the exist or disappear from your mailbox up on the
mail server (and, in fact, the default by e-mail clients is to delete
the server's copy once the e-mail client has yanked a copy from there).
If messages are disappearing from the Inbox in Outlook then you are
doing that by a means that you have not disclosed here.
While many
get addressed quickly and are then filed away, I always end up with a
few
that are still in my inbox after 30 days and then get deleted.
They get deleted because you chose to delete them using archiving on
that folder. Or you chose to configure the view for that folder so it
hides mails older than 30 days. They aren't deleted at all but the view
you configured is hiding them.
Is there a way to make a rule that will find messages that were
received 30
days ago and then move them to a longer term folder?
You're already using auto-archiving for that. Or you are using a view
that hides old mails. Rules only get exercised on mails as they are
received, not on mails previously received. You can run the rules
manually but they are designed to run when the message gets received,
not later. Thus, none of them have a clause to trigger on mails older
than N days. Since rules are normally exercised on mails as they are
received, there is no concept of receiving a 30-day old message (the
date when the mail was created is irrelevant and a just-received message
has no age).
Look at your auto-archiving settings. Check the view on the folder.
Something you are doing locally is moving or hiding the old mails.
