Sending email problem

Vipul Ramani linux2000in at gmail.com
Wed Sep 29 09:19:53 UTC 2004


Cheers,
     can u check 2 things.

1st: if u r using firewall at u r linux box than do it like this way
check rule of output and forward chain related 25 or 110 port blocking.

2nd thing.. do A ) telnet yourispmailserverip.com 25 if u get any some
sendmail or banner
              B) telnet yourispmailserverip.com 110 u will get SMTP is
running ..
in both u should get some screen things... but if u will get something like

trying to connec or connnection refused ... that it is some where else
block your ip to access that mail server.  Call to your isp.(Make sure
u dont have any rule in your local Linux rule for SMTP/IMAP port
blocking Rule)



On Tue, 28 Sep 2004 15:24:23 -0500 (CDT), Steve Phillips
<steve at focb.co.nz> wrote:
> 
> Check to make sure you are not dropping packets to port 113 (ident).
> 
> If you are doing this and your ISP is running an MTA such as sendmail then
> you will get a TCP timeout before you are able to send mail and this can
> be a good two to three mins in some instances (it seems like 10 when you
> are sitting and waiting)
> 
> Remember, security by obscurity is no real security - simply dropping all
> inbound packets wont tell someone you are not there (you did after all
> initiate a communication with the mail server). Rejecting traffic by
> sending back an ICMP port unreachable is usually a far better way to go
> unless you have a specific reason to silently drop packets.
> 
> --
> Steve.
> 
> On Sun, 26 Sep 2004, Dinh Tien Tuan Anh wrote:
> 
> > Hi, so sorry for the late response. Well, because this thing happens to
> 
> 
> > Mozilla mail, so i tried to set up Ximian Evolution mail with the same
> > configuration. Turned out that the email could be delivered, but takes 10
> > mins more or less. Im trying to contact my ISP and ask them about the SMTP
> > server.
> >
> > Thank you for all replies.
> > TuanAnh
> >
> >
> >
> >> From: Alexey Fadyushin <fab at s-tunnel.com>
> >> Reply-To: General Red Hat Linux discussion list <redhat-list at redhat.com>
> >> To: General Red Hat Linux discussion list <redhat-list at redhat.com>
> >> Subject: Re: Sending email problem
> >> Date: Sun, 26 Sep 2004 21:00:58 +0400
> >>
> >> Check the SMTP server setting in your mail software. Such a situation most
> >> probably means that your computer is trying to connect to nonexistent SMTP
> >> server. It is also possible that there is some problem
> >> with SMTP server itself and it does not accept connections at that time.
> >>
> >> You also can use for mail transmission your own SMTP server running on
> >> your computer (if your ISP allows it).
> >>
> >> Alexey Fadyushin.
> >> Brainbench MVP for Linux.
> >> http://www.brainbench.com.
> >>
> >>> On Friday 24 September 2004 11:38, Dinh Tien Tuan Anh wrote:
> >>>
> >>>  Im sorry for this uninformative question. But im quite a newbie in
> >>> Linux
> >>> world. I bet the configuration i set up were the same as that which
> >>> worked
> >>> before. There's no error at all. When i sent an email from my hotmail
> >>> account to that account, it recieved well.
> >>>  But whenever i tried to send an email to wherever, it just hang up with
> >>> the message "Sending email .... ". I have to click Cancel and it said
> >>> the
> >>> message's not been sent.
> >>
> >>
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-- 
Vipul Ramani
linux2000in at gmail.com
linux2000in at yahoo.com
~~~~~We Know HOW NetWorkS ~~~~~




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