We have a HP PowerEdge 400SC running Window server 2008 and a MailNow! 5 as the compay mail server. Recently we have a repetitive of mail in 2 and some time in 3. I have check the server, scan for virus, spam and malware but couldn't find any. So could anyone please help what is the cause and how to solve it? Thanks to those who reply.
khakilang -3 Posting Pro in Training
rubberman 1,355 Nearly a Posting Virtuoso Featured Poster
There can be a number of innocent reasons for this. One is that your servers aren't acknowledging receipt of the message in a timely manner. Another is if the messages are "return receipt requested" and the user dont's respond in a timely manner, the message may be resent. There are other reasons as well. You need to check the load on the physical server, the configuration of the mail server, and look at the messages in question to see if there is some other reason why you might be getting duplicate copies, such as a common sending server/user.
gerbil 216 Industrious Poster
POP3 download log corruption?
MidiMagic 579 Nearly a Senior Poster
I saw this happen az few years ago where two mail servers were each configured to send copies of all incoming mail to the other server.
khakilang -3 Posting Pro in Training
I have scan with Trend anti virus and anti spam which is quite effective but still no help. Will try again. Thanks for the help.
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