Title: DNS question

All,

I would like to tap the wealth of knowledge here for two DNS related questions.  First, I had Imail setup as a secondary spooler for a company.  I would see about 25,000 (1/15th of their daily total) messages pass through my server each day.  Question 1: why, when their server is up and running without issues, do I see so many messages pass through me?

They moved off my server this past Saturday night.  However, I'm still seeing a couple thousand messages pass through my server, which I'm still forwarding for them.  Question 2: why, with their TTL being 2 hours, and it being 3 days since the DNS change, do I still see messages sent to me?

Thanks and Happy Holidays,
Paul

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