NinerNet Communications™
System Status

Server and System Status

Problem with latest version of Microsoft Outlook

20 January 2026 19:16:43 +0000

We have been inundated by emails from clients having a problem with the latest version of Outlook. Seems there is no quality control at Microsoft, and they let a bug through their update process.

The problem has been reported to us in different ways by a number of disparate clients. But the solution seems to be to download a new update from Microsoft, and/or to uninstall Outlook and reinstall it. When you reinstall it, Outlook will (or it should) get the configuration information from your domain’s DNS; all it needs from you is your log-in information, namely your email address and password, which you presumably have saved in your password manager.

We hope this helps you. This is not a problem with or caused by NinerNet‘s mail servers.


Updated, 2026-01-20: Believe it or not, there are better email programs out there, despite what Microsoft would have you believe. Unfortunately the email “app” I used to use when I still used Windows is no longer around, but Pegasus is. I intended to try out Pegasus before I switched to Linux (because Eudora was discontinued), but I never did; however, it’s still around and very popular. There’s also Thunderbird, of course, but I have always hated that program. I have used Evolution (which also bills itself as a “personal information manager”, like Outlook) since I switched to Linux and had to leave Eudora.

Updated, 2026-01-21: Again, as we have been telling people over and over, there is nothing we can do on our mail server to fix Microsoft’s screw-up of their email program. If you want to try changing your password, as some have tried to do, you can do that yourself in the control panel or the webmail, but it won’t help. The problem is not our mail server. Please contact Microsoft to have them help you with their software. There is just nothing we can do to fix their software.

Updated, 2026-01-21: Also, please note that no non-Outlook clients have reported any problems since this ongoing palaver with Microsoft has started. I bet Bill Gates won’t be writing us a cheque!

NC036: New DNS entries needed for domains NOT hosted with us

20 November 2025 05:41:07 +0000

If any messages you are sending through us result in a bounce messages that reads as follows:

From header sender domain not verified (DOMAIN.COM)
On your Sending > Verified Senders page
verify the sender domain or email to be allowed to send.

This means you are not hosting your DNS with us.

You need to go to your DNS provider and add the following two CNAME records so that your messages get through:

em460536.DOMAIN.COM
s2g-return.niner.net

s460536._domainkey.DOMAIN.COM
s2g-dkim.niner.net

Of course, DOMAIN.COM must be your actual domain.

If you rely on forwarding any messages to another domain, your senders will likely get the same bounce message. The solution is to stop the forwarding.

Please let us know when you have added the two new records, and we will complete the process.


Updated, 2025-11-21: Added word to title to clarify (because if the domain was hosted with us we’d have the power to change it) and added a missing underscore to the record you need to add. Sorry for that!

NC036: Mail queue back to normal

14 November 2025 19:46:46 +0000

After about an hour and a half of managing resources on the mail server (NC036), we have cleared the mail queue and processed all of the email that was delayed.

As far as we can tell, these incidents are caused by the mail server being overloaded. Recent statistics showed that at certain times about 80% of the mail received by our mail server was spam. I don’t want to appear like I am cherry-picking statistics to make it look worse than it really is, but the statistics amaze even me, who has been running mail servers for 29 years. At other times the spam load decreases, of course, but at other times, of the 100 messages we receive in any given unit of time, 80 of the messages are spam. So at those times the server cannot keep up with the flow of email into the server, because the server is busy scanning all the messages to determine if they are spam, and while it’s doing that ten more new messages arrive. Then it finishes processing that spam message and starts processing the first of the ten new messages waiting, and so the process goes.

Yes, we could increase the memory on the server, but this isn’t cheap, isn’t instant and can be further disruptive, and we know for some of our bigger clients, your invoices have increased this year. The money available to us is not unlimited, just as your wallets are not unlimited.

The mail server woes are not related to the nameserver work we’re doing. They are three different machines in three different data centres on three different continents. Gone are the days back in the nineties when we ran everything on one physical server, when we had problems communicating with our clients if the one server had a problem unrelated to email; when that happened, the unrelated problem meant we couldn’t also update this server blog (which didn’t exists back then!), so everybody was in the dark until we fixed the problem. Now, we at least have the real-time monitor and this status blog, but even those have limitations; you’ll notice that the statistics for server NC036 (the mail server) show it as having been up for 99.997% in the last 24 hours, which supposedly means the mail server was down for only 2.5 seconds! If that’s all it was down for, people wouldn’t have time to write emails explaining their problems! So the real-time monitor isn’t 100% accurate (even though it is close), and even the monitoring didn’t alert us when it should have. This resulted in the delay in clearing up the mail queue.

The point of this long blog post is to describe the challenges that we face some days, and to let you know we’re not sitting back doing nothing, while you wonder what’s happening to your email. Thank-you for your attention.

NC036: Battling spam on the mail server

14 November 2025 17:15:44 +0000

We are battling an overload of spam on the mail server (NC036). We will have the issue cleared soon and will post an update when we do. Apologies for the inconvenience.

NC036: Mail server … again

10 July 2025 20:45:47 +0000

We’ve had reports that emails to and from our mail server are taking a couple of hours or more to get through. We’ve been on the mail server and there is no apparent reason for this — other than the huge amounts of spam the mail server processes every day — but we have rebooted it twice now and we’ve initiated a flush of the mail queue. These actions seem to have finally flushed the mail queue, and all delayed messages have been delivered, both locally and to foreign servers.

There’s never a dull day around here when dealing with email.

NC036: Issue resolved

5 July 2022 23:54:13 +0000

The issue now appears to be completely resolved. If you’re having any email issues, please do contact NinerNet support and we will look into them. Thank-you.

NC036: Server is up, but some issues

5 July 2022 23:09:28 +0000

We have been informed by the data centre where server NC036 is located that, due to “an effect from ongoing data centre maintenance”, there are connectivity issues. We have been noticing intermittent issues with both direct email connections and the webmail, notably slower transactions (e.g., deleting messages, scanning multiple folders, etc.). However, email is still flowing as usual, perhaps with minor delays.

We have opened a ticket with the data centre to determine why the issues are ongoing. We will update you as we receive more information.

NC036: Emergency maintenance explanation

2 September 2021 09:23:31 +0000

The emergency maintenance on server NC036 earlier today was to add additional disk space for email storage. Normally this maintenance is scheduled in advance, but today a number of factors combined to require us to take action immediately. We will work to avoid this situation in the future, but the cause of the situation was one of the aforementioned factors.

Thank-you for your patience. If you have any questions or concerns, please contact NinerNet support. Thank-you.

NC036: Server back online

2 September 2021 02:59:34 +0000

Server NC036 is back online. It was down for 6 minutes between 02:31 and 02:37 UTC. We’ll be posting additional information about this shortly.

NC036: Emergency maintenance

2 September 2021 02:33:05 +0000

Server NC036 (our primary mail server) will be undergoing emergency maintenance within the next few minutes. The server will be down for approximately half an hour.

We will post an update when we are done.

NinerNet home page

Systems at a Glance:


Loc.SystemStatusPing
Server NC023, London, United Kingdom (Relay server), INTERNAL.NC023InternalUp?
Server NC028, Vancouver, Canada (Monitoring server), INTERNAL.NC028InternalUp?
Server NC031, New York, United States of America (Web server), INTERNAL.NC031InternalUp?
Server NC033, Toronto, Canada (Primary nameserver), OPERATIONAL.NC033OperationalUp?
Server NC034, Lusaka, Zambia (Phone server), INTERNAL.NC034InternalUp?
Server NC035, Sydney, Australia (Secondary nameserver), OPERATIONAL.NC035OperationalUp?
Server NC036, Amsterdam, Netherlands (Mail server), OPERATIONAL.NC036OperationalUp?
Server NC040, Toronto, Canada (Web server), INTERNAL.NC040InternalUp?
Server NC041, New York, United States of America (Web server), OPERATIONAL.NC041OperationalUp?
Server NC042, Seattle, United States of America (Status website), OPERATIONAL.NC042OperationalUp?

Subscriptions:

RSS icon. RSS

Twitter icon. Twitter

Search:

 

Recent Posts:

Archives:

Categories:

Links

Tags:

.co.zm domains .com.zm domains .zam.co domains back-up bounce messages browser warnings connection issues control panel database dns dos attack dot-zm domains down time email email delivery error messages ftp hardware imap mail mailing lists mail relay mail server microsoft migration nameservers network networking performance php phplist pop reboot shaw shaw communications inc. smtp spam spamassassin ssl ssl certificate tls tls certificate viruses webmail web server

Resources:

On NinerNet: