NinerNet Communications™
System Status

Server and System Status

NC027 POP email issue

12 October 2014 20:02:25 +0000

We have determined that the issue with downloading email from NC027 last week only affected POP email accounts, and was likely related to the limit on POP3 connections configured on the server. We have raised that limit and don’t expect this to be an issue in the future.

This did not affect those who were connecting via IMAP. Our apologies to those who were affected.

NC027 email issue update

2 October 2014 11:32:55 +0000

We have rebooted server NC027 and this seems to be at least a temporary solution to the problem. We’re still looking into the cause so that we can actually fix the problem.

Possible email issues on NC027

2 October 2014 11:00:17 +0000

We are getting reports of issues with downloading — but not sending — email from server NC027. We’re having trouble nailing down what exactly the problem is, so you can help by sending us the exact text of any error messages your email program is giving you if you use this server.

From what we’ve seen so far, it seems that this is related to using POP and the problem in intermittent. So far we haven’t heard from IMAP users that they’re having problems.

Please contact support if you’re experiencing this problem, and please be sure to include the actual text of whatever error messages you see in your email program. The answers to the following questions would also be helpful:

  • What email program are you using?
  • Are you using POP or IMAP?
  • Are you using a secure (TLS/SSL) or an insecure connection to the mail server?
  • What is the exact text of any error messages you are seeing?

Thanks very much for your time, and we apologise if this is causing a problem for you.

NC027: SSL case closed

24 March 2014 09:10:02 +0000

We are closing this issue, although we have not found a cause. As far as we can tell, everything related to authentication on the server is working. Research on similar occurrences also shows the problem apparently resolving itself after a short time, and also points to a number of possible causes, including faulty operating system and software updates on client machines. However, in this case we saw the problem on different operating systems (Windows, Mac and Android) and different email programs. We also suspected anti-virus software, but again we heard of problems on computers running different anti-virus software.

Oddly, we could not reproduce the problem on any machines in our office, and so we had no primary references on which we could do research.

About the only commonality we could find — other than the server itself, of course — is that we believe all of the reporting clients are on VSATs. However, even that doesn’t fully explain the problem as if, for some reason, VSATs were the issue we should theoretically have seen the same problem on other servers. That said, the problem reported to us was only with downloading email, and the other mail server on which the bulk of our clients are hosted uses slightly different SSL technology; additionally our default instructions for that server do not mention using SSL. We saw a similar issue with VSAT connections several years ago, so if this is related it’s not unprecedented.

Another possibility that can’t be ruled out is network issues that may have interfered with encryption on the connection. Given the number of reports, such an issue (if it existed) would likely have been closer to the server than the client. If this issue reoccurs we will contact our upstream providers to see what they have to say.

While it is unsatisfactory to close an issue without having a smoking gun to identify it, we are going to do so at this time. If you do see this issue again, please contact support and we will again look at the issue.

Thank-you for your patience while we looked at this issue.

NC027: SSL issue update

24 March 2014 06:29:06 +0000

We’re now getting emails from clients telling us that the issue has apparently resolved itself. We’re continuing to investigate, but we have not done anything to the server, either before this issue started or since it was reported to us.

Updates will continue to be posted here.

NC027: SSL issue

24 March 2014 06:06:57 +0000

We are getting reports from clients that they are getting SSL-related error messages when connecting to this mail server. We have not yet been able to reproduce these errors ourselves, but we are investigating to find out what’s happening.

We will post further updates here.

NC027: Investigation findings

26 January 2014 16:00:09 +0000

Server NC027 (the new mail-only server) experienced a great and very brief increase in activity at about 04:00 UTC on 23 January, and we suspect that this lead to the server getting behind in scanning and processing email. The hard drives simply couldn’t keep up.

In order to allow the server to catch up, we disabled virus and spam scanning. Over the course of the coming week we’ll be re-enabling each of these (inbound and outbound) one at a time per day. This will allow us to determine which activity is the bottleneck and make finer adjustments accordingly. We also have a back-up plan to move the accounts on this server to one with faster (solid-state) drives, if necessary.

We apologise again for the inconvenience of significantly delayed email on Thursday. If you have any questions about this incident, please contact NinerNet support. Thank-you.

NC023: Spam cleaned up

26 January 2014 15:45:01 +0000

The spam on server NC023 (the relay server) has been cleaned up and the offending IP address blocked. Most of the legitimate email to destination servers that had been deferred as a result of the spam has also now been delivered; however, some mail servers are still not accepting email from this server, so that email will continue to be delayed a while longer until their systems are automatically updated to realise that this server is no longer spamming. This is currently only affecting about twenty messages.

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

NC023: Relay server stopped to clean up spam

26 January 2014 13:28:29 +0000

The relay server has been stopped while we clean up a spam outbreak, and identify and block the source. We will post updates here. We expect to have the server back online within the next 30-40 minutes.

NC027: Mail queue almost clear

23 January 2014 14:48:04 +0000

The mail queue will be cleared within the next 20-30 minutes.

Once the queue is clear we’ll be looking for a cause for this incident. There was a great spike in activity on this server around 04:00 UTC, and it’s quite possible that the initial back-up started around that time and didn’t quite manage to catch up.

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?

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