queue is full

[onlyreal2]

hey when i check the queue i see lots of emails are relaying but i know none of my accounts in my email send these emails how can i check?
who is sending and block them?

[InstaCarma_Tech]

1) Who is having large number of emails and if it is a spam or a genuine email

exim -bpc

2) Who is having large number of emails

exim -bp
exim -bp | exiqsumm

How do you check for the queued emails of a particular domain only

exiqgrep -f [luser]@domain

a) then see any message id contents and check if its a spam

exim -Mvb messageid

b)check header

exim -Mvh messageid

c)then check if the email id of the customer exists.

d) If it is a genuine account and still spams coming in check for catchall

vi /etc/valiases/domain.com

if catchall is set, remove it