Sendmail not working

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Operating Systems Linux Red Hat Sendmail not working
# 1  
Old 11-28-2013
Sendmail not working

Dear All,

I have a sendmail configured in one of our linux server.

But when I send mail , it is giving the error

DSN Service Unavailable 5.0.0

But the same sendmail configuration is working fine with another SMTP IP.

On the /var/spool/mail/root log , it is saying "Client not Authenicated"

# 2  
Old 11-28-2013

Could you please check the logs for same, you may get some important information for same.

mailq | more

R. Singh
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