You have just given me a very surreal moment, with the young cardinal. We don't have them over here in the UK, so my first picture was not of a bird, but of a very small cleric begging for food.

I'm sure someone else has already answered this, but just in case. Go to the control panel, then select sound. Choose the 'sounds' tab on that window, and use the dropdown menu under 'sound scheme' to select 'no sounds'. Click on the Apply button, then click OK. And Bob's your uncle!

That might not be entirely best, depending on the scheme - it sounds like what might be best is just to eliminate that one sound from the program? Depending on what client you are using (gmail, outlook, etc) there are options in the programs themselves that will turn off incoming mail notification sounds.

If you're on a desktop computer, you could try plugging the speakers into the headphone jack in the front of the CD-ROM drive. I usually run computers with sound muted, or even on systems with no speakers installed, so learned that trick long ago.

Dr. Phil

Don't have speakers--use headphones only. This computer has had its sound hooked up only a couple of weeks (for years it was not allowed out on the internet or to make any sounds at all.)

Got it fixed, though. Thanks.

Usually each email client has the option to turn sound on and of for that program. In Thunderbird for instance you click Tools...Options and select the general tab. The option to turn of the sound is right there.
Yours may have a different sequence but the same general idea.

Yes, as I said, it's fixed now. Thanks.