One other thing to look at Yimbo, for the short term, until you get the email you require - is to check the Junk mail filter. On the Home tab, in the Delete group, click Junk, and then click Junk E-mail Options. Add the insurance companies email account to the Safe Sender list.

Check that your anti-virus program is allowing this through as well.

My suggestions are that the email to you has been incorrectly addressed to you - it could be just a small matter of a "dot" in the wrong place or having checked that it is not on your "Server" it may be "stuck" on the sender's Server.

Other than that it could be your Firewall if it checks your incoming mail - try "disabling" that to see if it makes a difference.

The first question I would ask is has the sender got your correct e-mail address? Or is it being sent to an alternative you use?

There are other possibilities, such as the potential size of the e-mail and if the sender is using an ISP that has a size limit below it. Often it can be your ISP using a junk filter; you could check for this and ensure it isn't set to immediately delete all mail considered junk by it - the usual is around 7 days before moving to 'Deleted' and then more time to final removal. If you are using a filter you could also check that.