Re: [SPAM] slow smtp connection

On 05/09/2013 11:23 AM, Arch Giulio Nuti wrote:
> Hi
> I've been using debian with qmail since last september (from 1998 to
> 2012 with Slackware). No big problems.
> it is some days that my local smtp server is slow:    35 seconds to
> accept an email sent from me to a localnet address.
> ----------------------------------------------------
>   cat tcp.smtp
> 127.:allow,RELAYCLIENT=""
> 192.168.1.23:allow,RELAYCLIENT=""
> 192.168.1.:allow,RELAYCLIENT=""
> 37.205.134.210:allow,RELAYCLIENT="",QMAILQUEUE="/var/qmail/bin/qmail-queue",RBLSMTPD=""
>
> 37.205.134.211:allow,RELAYCLIENT="",QMAILQUEUE="/var/qmail/bin/qmail-queue",RBLSMTPD=""
>
> 85.18.95.80:deny
> 85.18.245.130:deny
> 94.76.244.144:deny
> 101.80.2.:deny
> -----------------------------------------------------
>
> I did not change any settings in DNS.
>
> Not shown: 984 closed ports
> PORT      STATE SERVICE
> 22/tcp    open  ssh
> 25/tcp    open  smtp
> 80/tcp    open  http
> 110/tcp   open  pop3
> 111/tcp   open  rpcbind
> 139/tcp   open  netbios-ssn
> 143/tcp   open  imap
> 445/tcp   open  microsoft-ds
> 465/tcp   open  smtps
> 783/tcp   open  spamassassin
> 901/tcp   open  samba-swat
> 993/tcp   open  imaps
> 995/tcp   open  pop3s
> 2049/tcp  open  nfs
> 3306/tcp  open  mysql
> 10000/tcp open  snet-sensor-mgmt
>
> It seems there is no particular connection from Outside.
>
>
> Could it depend from a DNS problem? I tried to compile a "hosts" file
> and I have a DNS local server which seems to run fine...
> Any Idea? I don't know where to start.
>
>
> Thanks
>

Sluggish performance is often a symptom of improper DNS configuration. 
What's in your /etc/resolv.conf file?
Is the address you're submitting from one of those listed in tcp.smtpd?

-- 
-Eric 'shubes'


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