Re: [webmin-l] Bouncing

[John H. <web...@ew...>]

Perisa Andjelic wrote:
> The server I'm trying to maintain gets into black list from time to time.
> I think that it's due to lots of BOUNCED mail. (As I understand BOUNCED mail is a mail to return to some address in case of unsuccesful delivery)?
>   
Correct.
> Is it usual to prevent mail to be bounced?
>   
No, in fact it would be considered a broken mail system if you didn't 
bounce mail. What happens if there is a simple typo when a legitimate 
sender is trying to contact a legitimate user on your server? Think in 
terms of the post office. If you use a bad to address and have a return 
address, the post office returns the mail to you. The lack of a bounce 
lets the sender know the mail was accepted for delivery.
> If it is, how to do that through the Webmin?
> Or, is there a better way to prevent being on a BlackList?
>   
This is a very indepth question. You should set aside a day or more to 
do some googling on the subject. Start with checking your reverse DNS 
using a tool such as http://dnsreport.com or http://dnsstuff.com to be 
sure you mailsystem is setup properly. Then consider asking for 
whitelisting on systems such as AOL and then see what you can do about 
staying off of other blacklists. Also, make sure you don't in fact have 
spam originating from your system, perhaps a hacked form? a bad user? 
But this simple little question really is horrid one right now and 
really not within the scope of Webmin. Unfortunately, there are a lot of 
broken mail systems out there right now, such as yahoo's mail, with will 
blacklist you for a period of time if you bounce forged from addresses 
when yahoo, as used so often by dictionary attacks on mailsystems.

Good luck! It isn't easy.

John Hinton
> Regards,
> Perisa Andjelic
>
> PS
> Laugh on my questions, but help please!
>
>
>
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