[vchkpw] multiple mails

2009-09-11 Thread Bulend Kolay

I use vpopmail on qmail.

I have many customer domains on that mail server.
One of these customer domains tells me that, they rarely receive the same 
mail a few times.  That problem becomes nearly once a week for this 
customer.

I haven't any complain from my other customers.
They use outlook or o.express for their mails.
What may the problem be ?

Do I have to change my configuration ? 



!DSPAM:4aaa2ee432719078915881!



Re: [vchkpw] multiple mails

2009-09-11 Thread Prasad Asokan
Ask them to check for any incoming e-mail scanner running on their local
machine. If so, ask them disable the same. Also check the .qmail file in the
user's folder for any duplicate entries.

Regards,
Prasad Asokan

2009/9/11 Bulend Kolay 

> I use vpopmail on qmail.
>
> I have many customer domains on that mail server.
> One of these customer domains tells me that, they rarely receive the same
> mail a few times.  That problem becomes nearly once a week for this
> customer.
> I haven't any complain from my other customers.
> They use outlook or o.express for their mails.
> What may the problem be ?
>
> Do I have to change my configuration ?
>
> 
>
>


!DSPAM:4aaa31f632719500116850!


[vchkpw] Re: multiple mails

2009-09-11 Thread Eric Shubert

Bulend Kolay wrote:

I use vpopmail on qmail.

I have many customer domains on that mail server.
One of these customer domains tells me that, they rarely receive the 
same mail a few times.  That problem becomes nearly once a week for this 
customer.

I haven't any complain from my other customers.
They use outlook or o.express for their mails.
What may the problem be ?

Do I have to change my configuration ?





This can be caused by the load on your server. Sometimes a long scan 
time will cause the sending server to time out before the scan is 
complete and your server acknowledges receipt. The sending server then 
obligingly resends. Check the smtp logs for the corresponding duplicate 
email. You'll see 2 receipts for it if this is what's happening.


--
-Eric 'shubes'


!DSPAM:4aaa575832712042125807!



[vchkpw] Re: multiple mails

2009-09-11 Thread Eric Shubert

Eric Shubert wrote:

Bulend Kolay wrote:

I use vpopmail on qmail.

I have many customer domains on that mail server.
One of these customer domains tells me that, they rarely receive the 
same mail a few times.  That problem becomes nearly once a week for 
this customer.

I haven't any complain from my other customers.
They use outlook or o.express for their mails.
What may the problem be ?

Do I have to change my configuration ?





This can be caused by the load on your server. Sometimes a long scan 
time will cause the sending server to time out before the scan is 
complete and your server acknowledges receipt. The sending server then 
obligingly resends. Check the smtp logs for the corresponding duplicate 
email. You'll see 2 receipts for it if this is what's happening.




Oh, and if this is the problem, I would install spamdyke to lighten the 
load on your server. It works great. You'll be scanning a lot less 
email, and filtering more spam at the same time. http://spamdyke.org/. 
Personally, I'd install spamdyke in any case. You'll be glad you did.


--
-Eric 'shubes'


!DSPAM:4aaa5a3d32711198235893!



Re: [vchkpw] Re: multiple mails

2009-09-11 Thread Bulend Kolay

I checked smtp logs for these mails.
But I couldn't see any duplicated mail.

What else may the problem be ?




- Original Message - 
From: "Eric Shubert" 

To: 
Sent: Friday, September 11, 2009 4:57 PM
Subject: [vchkpw] Re: multiple mails



Bulend Kolay wrote:

I use vpopmail on qmail.

I have many customer domains on that mail server.
One of these customer domains tells me that, they rarely receive the same 
mail a few times.  That problem becomes nearly once a week for this 
customer.

I haven't any complain from my other customers.
They use outlook or o.express for their mails.
What may the problem be ?

Do I have to change my configuration ?





This can be caused by the load on your server. Sometimes a long scan time 
will cause the sending server to time out before the scan is complete and 
your server acknowledges receipt. The sending server then obligingly 
resends. Check the smtp logs for the corresponding duplicate email. You'll 
see 2 receipts for it if this is what's happening.


--
-Eric 'shubes'







!DSPAM:4aaa979e32711163924190!



[vchkpw] Re: multiple mails

2009-09-11 Thread Eric Shubert
If the server isn't receiving them twice, then I'd look at the 
possibility of them being pop'd twice somehow. I don't know how that 
might happen (all of my Outlook clients are using IMAP). I presume your 
customers are using pop3.


Bulend Kolay wrote:

I checked smtp logs for these mails.
But I couldn't see any duplicated mail.

What else may the problem be ?




- Original Message - From: "Eric Shubert" 
To: 
Sent: Friday, September 11, 2009 4:57 PM
Subject: [vchkpw] Re: multiple mails



Bulend Kolay wrote:

I use vpopmail on qmail.

I have many customer domains on that mail server.
One of these customer domains tells me that, they rarely receive the 
same mail a few times.  That problem becomes nearly once a week for 
this customer.

I haven't any complain from my other customers.
They use outlook or o.express for their mails.
What may the problem be ?

Do I have to change my configuration ?





This can be caused by the load on your server. Sometimes a long scan 
time will cause the sending server to time out before the scan is 
complete and your server acknowledges receipt. The sending server then 
obligingly resends. Check the smtp logs for the corresponding 
duplicate email. You'll see 2 receipts for it if this is what's 
happening.


--
-Eric 'shubes'









--
-Eric 'shubes'


!DSPAM:4a6232714888040303!