[Exim] Mails are not delivered

(1) I send mails from my one mail id to another (my)
mail id and vice versa? Both ways it is not delivered.
(2) My mails to others are also not delivered but
"frozen".
(3) I receive mails alright (hopefully)
Ramachandran.
{I have debian 3.0, exim as MTA and Mutt as client.}

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