Smarter Mail - Spammers Targetting Mail Server Using Dynamic Ip's
May 22, 2009
We have been having some problems with one of our mail servers lately. Server is running Smarter Mail 4.x with declude.
Some spammers have been targeting this particular to send spam through this server. This putting lot of load on the server because declude is processing the SPOOL in Smarter Mail and spool goes upto 2000-20000 during the day. We have been checking the headers and blocking the IP's continuously of these spam but these people are using dynamic ip's. And it doesn't seem like single spammer. Content is quite different.
Blocking full ranges of certain IP Range helps though but then lot of legitimate mail is getting blocked as well.
Is there any good suggestion or a serious mail server admin who can have a look and actually sort it.
This is causing serious delays on our mail delivery through this mail server.
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Mar 6, 2008
i have installed a new mail server i.e. SmarterMail, and from past few days i have devoted much time to find "How to create Out Bound rules in Smarter Mail?" but unfortunately i ended up with no solution, hence here i am seeking help from all the member of WHT for my two questions:
1) Can we create an out bound rule in smartermail?
2)if yes, then what is the process for same?
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Feb 1, 2009
A spammer (probably www.powerball.com) is sending spams using one of my email addresses as his / her "from" address. This hanged my mail server last week and it took more than 60 hours to solve the problem.
My host replied me the problem was "You have over 100,000 emails in your mail queue due to a large amount of Frozen emails that were either deferred by the remote servers or sent to invalid addresses repeatedly".
From this morning, my emails are blocked again. I can't send / receive mails using any of my email accounts (from this server). I don't know how long this will take again to solve the situation, and I'm afraid that this may not be the last time.
Now I don't know what to do. Ideally, a logical solution could be to delete any bounced mail automatically (I'm using nutsmail + squirrel mail).
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Mar 31, 2009
Hi, today i was banned from hotmail aparently someone enter our server to one account of one client and sent spam all over the net...
platinumservermanagement already told us the name of the account used and we change the password,
can you please tell me where can i check the out mail logs (am using centos & exim) to see if anyone else is sending out spam? or the number of emails sent?
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Aug 13, 2008
I use cpanel.
Is there any way to disallow connections to SEND mail FROM my server to specific IPs? (Similarly to how you can limit connections to sshd from certain IPs)
I realize I cannot disable everything completely, as yahoo and the likes will have to connect to deliver mail. But no one of any use is going to try and connect to send mail, but a spammer.
No one has gotten in and abused it as of yet (knock on wood), but SMTP is being restarted at random and I can only imagine that this is being caused by one of these scumbags probably ddos'ing me. It takes eons to browse these logs, even if they restart via logrotate periodically!
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Jul 2, 2008
I getting this error when our clients are sending mail from outlook but they are able to send mail from webmail.
we are using exim mail server and whm . i can't understand where is problem , anybody can help me ?
Sending' reported error (0x800CCC6A) : 'Your
outgoing (SMTP) e-mail server has reported an internal error. If you
continue to receive this message, contact your server administrator or
Internet service provider (ISP). The server responded: 451 Please try again
later.
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