Solved

SMTP timing out on some incoming mails

Posted on 2004-09-16
8
416 Views
Last Modified: 2008-01-16
Hi

I have a client using MS SBS 2000 with exchange server - using DSL and a backup email server.

The problem is that most of the incoming mail is getting through but the rest is timing out. When this happens it is then queues on the backup email server nd when it tries to send again it also gets a time out.

I have switched on the SMTP log and the offending mails have a HELO,MAIL,RCPT,TIMEOUT,QUIT .

Exchange is not filtering any address - the firewall is not filtering any content or addresses.

Anyone any ideas

Thanks is Advance

Paul
0
Comment
Question by:Paddyo
  • 4
  • 2
8 Comments
 
LVL 2

Expert Comment

by:tztrh
ID: 12073655
what about anti virus software. I had similar problems when NOD32 scaned my incomming mail.
0
 

Author Comment

by:Paddyo
ID: 12073720
Im using Sophos Small Business Suite, (Sophos Antivirus and Puremessage spam filter)
I have tried stopping checking for spam - same result. Usually if a virus or spam is found it is quarintined.

0
 
LVL 2

Expert Comment

by:tztrh
ID: 12074533
what about limits on your incomming messages? try setting it to no limit and then check. can you post some logs about this matter
0
Best Practices: Disaster Recovery Testing

Besides backup, any IT division should have a disaster recovery plan. You will find a few tips below relating to the development of such a plan and to what issues one should pay special attention in the course of backup planning.

 

Author Comment

by:Paddyo
ID: 12074700
There are no limits set for imcoming mails.

I will try to get the revelant part of the smtp log.

Thanks
0
 

Author Comment

by:Paddyo
ID: 12074749
Part of SMTP log file

2004-09-15 21:05:37 217.114.167.253 irishdomains.net SMTPSVC1 2KSERVER 192.168.0.1 0 EHLO - +irishdomains.net 250 0 327 21 16 SMTP - - - -

2004-09-15 21:05:37 217.114.167.253 irishdomains.net SMTPSVC1 2KSERVER 192.168.0.1 0 MAIL - +FROM:<Stephanie.Fitzpatrick@ORIFLAME.ie> 250 0 58 64 0 SMTP - - - -

2004-09-15 21:05:37 217.114.167.253 irishdomains.net SMTPSVC1 2KSERVER 192.168.0.1 0 RCPT - +TO:<jackie@inspection.ie> 250 0 33 51 0 SMTP - - - -

2004-09-15 21:07:25 217.114.167.253 irishdomains.net SMTPSVC1 2KSERVER 192.168.0.1 0 TIMEOUT - irishdomains.net 121 4255609561 84 4 600781 SMTP - - - -
0
 

Author Comment

by:Paddyo
ID: 14315785
I should have commented earlier on this one - apologies

The answer believe or not was the MRU/MTU settings on an ADSL router and a firewall. They were at different settings. Once I set them to the same figure everything worked perfectly.
Paddyo.
0
 

Accepted Solution

by:
modulo earned 0 total points
ID: 14345768
PAQed with points refunded (500)

modulo
Community Support Moderator
0

Featured Post

Optimizing Cloud Backup for Low Bandwidth

With cloud storage prices going down a growing number of SMBs start to use it for backup storage. Unfortunately, business data volume rarely fits the average Internet speed. This article provides an overview of main Internet speed challenges and reveals backup best practices.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Following basic email etiquette rules will help you write a professional email and achieve a good, lasting impression with your contacts.
Read this checklist to learn more about the 15 things you should never include in an email signature.
In this video we show how to create an email address policy in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.:  First we need to log into the Exchange Admin Center. Navigate to the Mail Flow…
To show how to create a transport rule in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.: First we need to log into the Exchange Admin Center. Navigate to the Mail Flow >> Rules tab.:  To cr…

910 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

21 Experts available now in Live!

Get 1:1 Help Now