[exim] Mailing Listname with "&" character in prefix

Hello List,

I am managing a list server running on Mailman+Exim and someone has
requested that I create a list named (say)
jack&jill@???<jack%26jill@???>
.

Anyone done this before? Any side effects?

Thanks

-- 
Best regards,
Odhiambo WASHINGTON,
Nairobi,KE
+254733744121/+254722743223
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"If you have nothing good to say about someone, just shut up!."
              -- Lucky Dube