Recommended Posts

Hey guys,

I've been banging my about this for so long I'm sure I'm just going round in circles.

I have an exchange 2003 Server emails appear to get stuck in the queue.

I have run smtpdiag and this is the output I get:


Searching for Exchange external DNS settings.
Computer name is ******-SERVER.
VSI 1 has the following external DNS servers:
208.67.222.222

Checking SOA for ****construction.com.
Checking external DNS servers.
Checking internal DNS servers.
SOA serial number match: Passed.


Checking local domain records.

Checking MX records using TCP: ******international.com.
Checking MX records using UDP: ******international.com.
Both TCP and UDP queries succeeded. Local DNS test passed.

Checking remote domain records.

Checking MX records using TCP: ****construction.com.
Checking MX records using UDP: ****construction.com.

Both TCP and UDP queries succeeded. Remote DNS test passed.


Checking MX servers listed for *@****construction.com.
Connecting to mail.***construction.com [81.***.2*8.1*4] on port 25.
Failed to receive data. Error: 10054
Error: Expected "250". Failed to get a response from the server.
Failed to submit mail to mail.asemconstruction.com.
[/CODE]

I keep getting Error:10054 no matter what email server I try to send to.

If however I telnet into a mail server it works perfectly fine and I get no errors :(

This is doing my head in!

Any help would be greatly appreciated.

James

Link to comment
https://www.neowin.net/forum/topic/1137918-exchange-2003-queue-stuck/
Share on other sites

It's been a long while since I looked at Exchange 2003, but a good place to start would be to enable SMTP logs; http://www.msexchange.org/articles-tutorials/exchange-server-2000/monitoring-operations/Logging_the_SMTP_Service.html

Have you looked/checked all services are running?

looks like firewall or something?

I thought that, all the ports are open. Could this be as simple as a faulty router?

It's been a long while since I looked at Exchange 2003, but a good place to start would be to enable SMTP logs; http://www.msexchang...TP_Service.html

Have you looked/checked all services are running?

All the services are running yes I'll get a log in a moment.

SK[' timestamp=1361532934' post='595536540]

Sorry, you can telnet from the exchange server to the server it's attempting to reach then?

As a quick fix can you not relay via your ISP's mail server (Smart Host)?

Yes I can telnet to the mail server perfectly fine and issue commands without being booted.

I'm just about to try the smart host now.

--EDIT--

Okay..... The Smart Host hasn't worked. Setting up the smart host still gives me the same issues. In the queue I have this error message:

The connection was dropped by the remote host.

when you are running telnet, are you running it from the mail server? This would test port 25 on the mail server to negate any firewalls.

Next you will have to try to find an application conflict, you should also check to see if your smtp service is running as well as your transports. I don't have a 2003 server to help you troubleshoot, I am going off memory and I believe you have to have the microsoft smtp service enabled to even think about sending and receiving mail.. also you will need to make sure the exchange routing engine is started in services.msc

Look at your event logs as well for errors.

when you are running telnet, are you running it from the mail server? This would test port 25 on the mail server to negate any firewalls.

Next you will have to try to find an application conflict, you should also check to see if your smtp service is running as well as your transports. I don't have a 2003 server to help you troubleshoot, I am going off memory and I believe you have to have the microsoft smtp service enabled to even think about sending and receiving mail.. also you will need to make sure the exchange routing engine is started in services.msc

Look at your event logs as well for errors.

I have indeed been running the telnet commands from the mail server.

The SMTP service is started as is the exchange routing engine, both services have also been restarted and still not working :(

You have something that is stopping communications. Do you have a spam filter? What is the outbound rate limit (this will log jam the crap out of your server).

Looking at your log, I would say that you have a low rate limit set on your outbound mail filter. Just to the 1 IP you have over 100 going to it. Set it to 200 or 500.

Here is a pic of my barracuda you will see that it is at the default, some are much lower set to around 50 per Sender.

post-118098-0-79906200-1361541827.jpg

You have something that is stopping communications. Do you have a spam filter? What is the outbound rate limit (this will log jam the crap out of your server).

Looking at your log, I would say that you have a low rate limit set on your outbound mail filter. Just to the 1 IP you have over 100 going to it. Set it to 200 or 500.

Here is a pic of my barracuda you will see that it is at the default, some are much lower set to around 50 per Sender.

At the moment these limits are off...

The one that is on was already set to MUCH higher than 500

post-279758-0-72473800-1361542296.png

Just took another look at that log file....postfix is your smtp outbound, you will need to check that box to allow through....it is caught up in there. Judging from the codes you are getting...fix your spam filter.

We don't use PostFix :s There is nothing installed on this server apart from exchange.

lets start simply....do you have a spam solution outside of your exchange solution?

do you have anything setup in your smarthost?

Servers/Your_Server/Protocols/SMTP/Your_SMTP_Virtual_Server

Right-click Your_SMTP_Virtual_Server, and then click Properties.

Click the Delivery tab, and then click Advanced.

In the Smart host box, type the name of the smart host server.

There are 2 areas that I can remember where you can add a smart host....this is one of two.

lets start simply....do you have a spam solution outside of your exchange solution?

No, Exchange is configured to send mail via DNS, we aren't using a Smart Host. The email is not configured to "go" anywhere else.

We don't use PostFix :s There is nothing installed on this server apart from exchange.

sorry looking at other domains in your mail logs. It could be on there end causing the issue and you will have to wait for their mail server to accept mail from you again, if they have a low rate control (the top field in my pic above). (you have no control over this). try sending mail to a gmail or yahoo account. does it work?

sorry looking at other domains in your mail logs. It could be on there end causing the issue and you will have to wait for their mail server to accept mail from you again, if they have a low rate control (the top field in my pic above). (you have no control over this). try sending mail to a gmail or yahoo account. does it work?

SK[' timestamp=1361543221' post='595536752]

Is all mail being queued or just mail for one domain your sending to?

It looks like it is ANY domain.

I cannot send to Outlook.com, gmail.com, yahoo.co.uk I cannot send to any domain at the moment.

SK[' timestamp=1361543358' post='595536764]

Receiving OK?

I am receiving emails perfectly yeah.

Hi,

Port 25 is a wide open SMTP port - have you checked for a higher range port that supports SSL or STARTTLS?

What other ports can I use? I here 10025 is used in places? Doing this won't cause issues will it?

SK[' timestamp=1361543221' post='595536752]

Is all mail being queued or just mail for one domain your sending to?

If you look at the log file he posted, it looks like the majority of it is spamming domains and those domains have stopped allowing him to spam them. download it and organize by column c...100's going to the same ip addresses. there is 1 ip that has less than 15. everything else seems to be very very high.

would it be possible to setup a teamviewer session so that I can see what is going on. it is completely up to you, I am willing to led a hand if you would like me to.

SK[' timestamp=1361543629' post='595536778]

I looked at the log, tried to open it in Notepad which failed hard.

Shove your external IP in here to see if your on a spam database... http://www.spamhaus.org/lookup/

yeah, try excel viewer.

http://www.microsoft.com/en-us/download/details.aspx?id=10

SK[' timestamp=1361543629' post='595536778]

I looked at the log, tried to open it in Notepad which failed hard.

Shove your external IP in here to see if your on a spam database... http://www.spamhaus.org/lookup/

Yeah I've checked for spam listings, they aren't listed anywhere.

would it be possible to setup a teamviewer session so that I can see what is going on. it is completely up to you, I am willing to led a hand if you would like me to.

If you want to private message me, then I can set this up thanks.

This topic is now closed to further replies.
  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Posts

    • As I've been usually saying lately - we all can thank "AI" for this.
    • Friday Windows 11 preview builds are here. Insiders in the Experimental (formerly Dev) and Beta Channel can download builds 26300.8697 and 26220.8690. My Windows11 device on the Preview Channel just got 26220.8728. My guess is this build is a nightly update from 26220.8690.
    • Traffic has a surprisingly unexpected impact on your surroundings by Sayan Sen Image by Radik 2707 via Pexels A collaborative study by researchers from several Israeli institutions found that everyday pollution from traffic and industrial activity measurably changed the atmospheric electric field over the Tel Aviv metropolitan area, providing new evidence of how human activity can influence the lower atmosphere. The research was led by Dr. Roy Yaniv of the Hebrew University of Jerusalem and the Gertner Institute at Sheba Medical Center, Dr. Assaf Hochman of the Fredy & Nadine Herrmann Institute of Earth Sciences at the Hebrew University, and Prof. Yoav Yair of Reichman University. The study also involved Itay Froomer, a student from Hadera High School and the Israeli Museum of Medicine and Science (Technoda), who carried out the work as part of the Ministry of Education's 5-unit physics research track. The researchers focused on the atmospheric electric field under fair-weather conditions. Even in the absence of storms, a weak electric field naturally exists between Earth's surface and the atmosphere. One of the main ways scientists measure this field is through the Potential Gradient (PG), which is the inverse of the vertical component of the electric field. PG is a key part of the global electric circuit, a planet-wide system of electrical currents maintained by thunderstorms and electrified clouds around the world. Scientists have long known that the atmospheric electric field can be influenced by factors ranging from large-scale atmospheric processes to local weather conditions such as dust, fog and clouds. Human-made pollution is also known to play a role, but understanding exactly how urban emissions affect the electric field close to the ground has remained an area of ongoing research. To investigate this relationship, the team analyzed measurements from a newly installed electric field mill, an instrument used to continuously monitor the strength of the atmospheric electric field. The instrument was installed at the Center for Technological Education (Roter House) in Holon and became operational in August 2024. It was funded by Israel's Ministry of Education and the Holon municipality. The electric field mill forms part of a broader monitoring network that includes nearby meteorological stations and air-quality monitoring sites. This allowed researchers to compare electric field measurements with detailed weather data and pollution records to better understand what was driving changes in the Potential Gradient. The study focused on two major urban pollutants: fine particulate matter (PM2.5) and nitrogen oxides (NOx), both commonly produced by vehicle traffic and industrial activity. PM2.5 refers to microscopic airborne particles small enough to remain suspended in the atmosphere for extended periods, while NOx is a group of gases released during fuel combustion. Researchers examined daily, weekly and seasonal patterns in the atmospheric electric field and compared them with changes in pollutant concentrations. Their analysis revealed a clear relationship between NOx levels and changes in the Potential Gradient, particularly during morning and evening rush hours when traffic emissions were at their highest. “What we observe is a direct physical link between emission peaks and electrical variability,” explained Dr. Roy Yaniv. “NOx reduces atmospheric conductivity very quickly, so the electric field responds almost instantaneously during traffic rush hours.” Atmospheric conductivity describes how easily electrical charges move through the air. According to the researchers, nitrogen oxides rapidly alter this conductivity, causing a near-immediate response in the electric field. PM2.5, however, was associated with a delayed response. The researchers attributed this difference to the particles' longer atmospheric residence time, meaning they remain in the atmosphere for longer periods, as well as their different microphysical interactions with surrounding air and atmospheric components. The study also identified a pronounced "weekend effect." In Israel, traffic volumes and some industrial activity decline significantly on Fridays and Saturdays. During these periods, concentrations of both NOx and PM2.5 dropped, and corresponding changes were observed in the atmospheric electric field. “The weekend signal demonstrates just how sensitive the electric field is to changes in human activity,” the researchers noted. “When emissions decline, the electrical environment adjusts at once, providing a high-resolution indicator of urban atmospheric conditions.” The findings showed that pollution levels can influence not only the chemical composition of the atmosphere but also its electrical properties. Researchers said the results strengthened the case for using atmospheric electricity as an additional tool for environmental monitoring, particularly in densely populated urban areas where anthropogenic, or human-caused, influences are most pronounced. The study also pointed to potential public health applications. By combining air-quality measurements with observations of atmospheric electricity, researchers said they could gain a more complete picture of how urban atmospheric conditions change over time. “Integrating air-quality data with electric-field measurements gives us a clearer picture of how the lower atmosphere evolves moment by moment,” the researchers added. “It’s a framework that can support both scientific insight and practical environmental decision-making.” Beyond the scientific findings, the project highlighted a collaboration between universities, public institutions and secondary education. Researchers said the work demonstrated how students could take part in real-world environmental research while contributing to studies of air quality, atmospheric processes and their potential effects on society. Source: Hebrew University, ScienceDirect This article was generated with some help from AI and reviewed by an editor. Under Section 107 of the Copyright Act 1976, this material is used for the purpose of news reporting. Fair use is a use permitted by copyright statute that might otherwise be infringing
    • We aren't even at the all-star game and Microsoft is talking about an update that will most likely be released during the World Series if not after. A lot can happen in the world between now and the 2026 World Series, including the 2026 FIFA Cup. Tell me about it again after the FIFA Cup is concluded. That should allow plenty of time to prepare for it.
    • Great, tell me when I have a "Bad Pool Caller" elsewhere not in Windoze.
  • Recent Achievements

    • Week One Done
      AMV earned a badge
      Week One Done
    • One Month Later
      AMV earned a badge
      One Month Later
    • Collaborator
      ryansurfer98 went up a rank
      Collaborator
    • One Month Later
      Eurosoft10 earned a badge
      One Month Later
    • Week One Done
      Eurosoft10 earned a badge
      Week One Done
  • Popular Contributors

    1. 1
      +primortal
      542
    2. 2
      +Edouard
      186
    3. 3
      Michael Scrip
      77
    4. 4
      PsYcHoKiLLa
      77
    5. 5
      Steven P.
      71
  • Tell a friend

    Love Neowin? Tell a friend!