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Cluster of .Net Mail Servers? Last Post 13 Feb 2009 11:10 AM by Archie. 3 Replies. | Sort: |
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Dave Webb
Basic Member
Posts:146
 | | 13 Feb 2009 05:37 AM |
| Hi all. I'm in the process of building 4 new Windows 2008 x64 servers and as part of this will be decomissioning my old Windows 2003 servers that are running the Pro version of ArgoSoft Mail Server. I really want to setup a cluster of servers so that if one fails POP3/SMTP fail over to another, so users don't experience any downtime. I will use NLB for this to create a cluster. At the moment MailEnable seems the best choice as I can't see anything on the ArgoSoft site about clustering. I've been using the pro version for years, and have survived with the Mailbag feature but this offers no redundancy and I need to have something more efficient. Also, when I ran a trial version of the .Net version of ArgoSoft Mail Server it performed very badly (I only had one domain on there for Mailbag handling about 100 messages a minute). This was several months ago so can anyon tell me if it performs well for them, and is it stable? I'd like to stay with ArgoSoft so need some feedback to help convince me it would be the right thing to do. Unfortunately the forums here seem full of reasons not to continue with ArgoSoft. Thanks,
Dave | | Dave Webb
www.windows2008forums.co.uk |
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Hany Mustapha
New Member
Posts:4
| | 13 Feb 2009 05:44 AM |
| I too would be very interested in understanding how to cluster Argosoft... although I suspect that it may have trouble with clustering POP, simply because of the 'store' piece of the 'store and collect' nature of POP... mailbags should be pretty straightforward though, I'd suspect, because of the transient nature of the storage for that.
FYI, we're running Pro .Net 1056 on Win2K3 Virtual Server with 768MB RAM. About 100,000 messages per day - so around 70 per minute - and it's fine. Absolutely fine. | | | |
| Dave Webb
Basic Member
Posts:146
| | 13 Feb 2009 05:49 AM |
| My initial idea was to setup two servers with a SAN to store a single copy of the data. Then, using NLB in Windows 2008, setup a load balancing cluster to forward ports 25 and 110 to a shared IP used by both servers. But I don't know if the .Net version will happily share the data that way (especially the config). Also, finding a hosting control panel that support ArgoSoft is proving difficult. DNP (Dot Net Panel) appears to support the Pro version. Dave | | Dave Webb
www.windows2008forums.co.uk | |
| Archie
ArGoSoft Developer
Basic Member
Posts:152
| | 13 Feb 2009 11:10 AM |
| Most of the configuration information is stored in the database, so, if you can share the database, you should be fine. Other information is stored in the Settings.xml file, and it is good thing, because whatever is stored there is individual for each server instance (such as connection string, data location and so on).
Also, most likely, you will need to use sharing the data via network. It may not work, unless you run your mail servers under a user, who can see your network resources.
In general, and in theory, it is possible to cluster more than one server, as long as you are using something that can do load balancing.
Archie | | | |
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|  | | Mail Server v1.0.8.3 |
- Added support of STARTTLS (STLS) command for SMTP, POP3, IMAP, and SMTP relay and delivery, which will
allow secure, fully encrypted connections, when possible;
| | 11/6/2011 1:10:34 PM |
| Mail Server v1.0.8.2 |
- Optimized delivery speed. In earlier versions each "tick" which was checking whether messages were
in the outbox queue, was picking up only one message at a time. Now it will attempt to pick MaximumAllowedThreads-ActiveDelivery threads
messages, which should considerably increase deliver speed;
- Optimized SEARCH and STATUS IMAP commands. They appear to be used very extensively by Android, and (not that extensively, but still) by
iPhone. Now users who use mobile phones to access their IMAP accounts will see considerable improvement;
- Optimized STORE IMAP command. Before storing of IMAP flags was occuring one message at a time, which seemed to be fine
with SQL server, but proved to be slow for SQLite... Now it happens with single SQL call.
| | 10/8/2011 7:59:35 PM |
| ArGoSoft Mail Server v1.0.8.1 | -
Fixed a bug: when using IMAP via Firefox with "When I delete a message, move it
to Trash folder" option, marking messages in the trash folder was causing high CPU usage,
and was taking some time, making the server pretty much non-responsive. The problem was
happening only when using SQLite.
| | 6/6/2011 9:33:36 PM |
| ArGoSoft Mail Server v1.0.8.0 |
- Fixed a problem with web interface - was showing only first page of messages, and would not
switch to other pages; In order to fix the web interface, mail server itself has to be updated;
- When installint initially, was still using SQLite, even when SQL was requested;
- There was a problem with switching from SQLite database engine to SQL server database engine:
the SQL database was not being created;
| | 5/23/2011 5:53:55 PM |
| ArGoSoft Mail Server .NET v1.0.7.9 |
- The server no longer requires Microsoft SQL Server. If SQL server is not found, it will use
SQLite engine, which does not require separate installation. If SQL server is found, then user will be
prompted whether he wants to use it;
- Made other improvements, such as, now mailbox rebuild indexes orphaned records, rather then deleting them,
also added an opotion to increment UIDL validity of folder (both on the Mailbox viewer box);
- Made minor improvements on web interface;
| | 4/26/2011 9:47:25 PM |
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