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postfix-users: Re: Repeated mails

Re: Repeated mails

From: captain_claw <ryanclaw_at_nospam>
Date: Thu Oct 14 2010 - 03:38:18 GMT
To: Matt Hayes <>

On Thu, Oct 14, 2010 at 10:40 AM, Matt Hayes <>wrote:

> On 10/13/2010 10:17 PM, Alberto Lepe wrote:
>> Yes Matt, I agree with you.
>> However, for some reason a customer is complaining that some people are
>> receiving several copies (in one case up to 15 copies) with exactly the
>> same content, when he/she sent just one mail.
>> I thought at the beginning it may be a problem with his mail client but
>> after checking the logs I didn't see anything strange but those repeated
>> lines.
>> I now understand that those repeated logs are normal as the filter is
>> re-injecting them into postfix. The only irregular thing I saw is that
>> his/her mails are being marked as SPAM (but not rejected), which then
>> are sent to quarantine. As far as I know, I have to manually "release"
>> them from quarantine in order to be send, right?
>> For now, I use those emails in quarantine to adjust the values of
>> spamassassin until I can reach some comfortable setup in order to start
>> blocking emails.
>> Is there any other way I could analyze the "duplicated mails" problem?
>> Thanks again.
> What email client is the client using?
> -Matt

If you find that the problem is only on that user, I think you have to check
his/her email client. if it's M$ outlook/express kindly check the pst/dbx
file size of the user. cases that the MUA reaches its max size of 2gb (for
M$ outlook 2003 below) the tendency is MUA can't write additional entry to
pst/dbx and thus it remains to outbox. So if the users tries to send/receive
the MUA re-send it to the recipient co'z the MUA assumed that there is still
mail seating on the outbox. However if everybody is experiencing this
problem then you have investigate more on your logs.