Depends on your version of Outlook which you still didn't post. In general
in the left bottom corner on the status bar it would say "Filter Applied".
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Robert Sparnaaij [MVP-Outlook]
Coauthor, Configuring Microsoft Outlook 2003
http://www.howto-outlook.com/
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Real World Questions, Real World Answers
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"colin" <(E-Mail Removed)> wrote in message
news:994FF502-C559-4215-ABBE-(E-Mail Removed)...
>
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> "colin" wrote:
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>> Every day, my sent mails are deleted from Outlook for the previous day.
>> How do I resolve that problem?
> How would I tell if I had a filter on? Guess I am not as savvy as some.
>