Jenkins fails to send e-mail to group mail Id but works on individual Id

[Venkat]

Hi Friends,
  When I use my own Id, it works . but fails when I use my team Id.
Any ideas on why its not reaching to the group ?

Jenkins as such doesn't complain on delivery failure but we are not
receiving the e-mail.

for eg: m...@abc.com - works
        : gro...@abc.com doesn't work

I am filling this mail Id in    Global Recipient List field  (of
Editable Email Notification)

Any help/pointers will be appreciated.

(PS: Jenkins says..sending mail to gro...@abc.com. and it appears
successful from jenkins console but We don't see the group mail)

Thanks,
VG.