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Again, as you've been asked in several of your other threads, you need to provide DETAILS: "linux mail server" tells us nothing...what version/distro of Linux, using which mail server engine, and in what kind of configuration? Firewalls? ANY details?
MDeferred: Connection timed out with hmail.com.
...and if you tried to look this error up, you'd have seen that either the domain can't be resolved, or it's not set up to accept email from you as a relay.
MDeferred: Connection refused by punkass.com.
Again, that domain is REFUSING to allow you to send mail to it. So, contact the mail admin at that site and ask them to let you in. However....
..these two lines don't make me want to help you at all. You're masking your REPLY-TO address, you're saying the Email is coming from WELLS FARGO BANK in the US. and the rssda.org site is in Nigeria (home of the 419 scam).
in the mqueue directory. lot mails stored in the mqueue directory. Give some help.
You STILL are not addressing the concerns brought up about Wells Fargo Bank, Nigeria, etc. NO ONE HERE is going to help a spammer/phisher/scammer.
Easy, easy... It could be his server is sending spam due to vulnerabilities and he just doesn't recognize that, right?
@saran_redhat: please respond and tell us you've audited the complete server (accounts, running processes, software versions, anomalous files) and any other server that sends email through this server of yours.