AlphaMail Is Scalable and Accessible Web Mail
There are several places where you can run into difficulty on a new installation. The Administrator's Guide included with AlphaMail has many tips on how to solve these issues.
One of the most puzzling problems is produced by accessing the service via an incorrect domain name. The cookie that maintains the session is tied to the server domain that you specify during configuration and is stored in a parameter in the AlphaMail apache configuration:
PerlSetVar alphamailDomain server.example.com
If the user is able to access the login page with an unqualified hostname (such as server), the cookie will not be exchanged properly and login will fail without any error whatsoever. The login is actually succeeding, but the browser is not sending the cookie back because of the mismatched URL.
Fortunately, most users connect though a link or type an insecure HTTP URL. The former is never a problem, and a redirect does a nice job of correcting the latter:
<VirtualHost _default_:80> RedirectMatch ^/alphamail/?$ https://server.example.com/ ↪alphamail/index.html RedirectMatch ^/alphamail/mail/?$ https://server.example.com/ ↪alphamail/mail/index.html </VirtualHost>
Other problems usually involve dependencies, configuration errors, incorrect permissions or missing auxiliary directories. The best indication of these are errors in alphamail_ui.log, which by default is created in /var/log.
SELinux also can be the source of problems. I have not run AlphaMail with SELinux, and unless you are willing to create your own security profile, you probably will need to turn it off or disable enforcing.
AlphaMail development has been mostly concerned with performance and core functionality to this point, and I don't expect these two issues to become any less important in the future, as the product is directed at environments that have a large and diverse user community.
It is quite feature-rich, but certainly not all-inclusive. Limiting feature creep is an ongoing requirement, because the critical concern is easy and reliable access to essential functionality, not global coverage of mail client features.
Still, there are plans for significant improvements and additions, such as an internationalized interface, optional Ajax components that would improve client interaction and conversation views.
AlphaMail Administration Guide: sourceforge.net/docman/display_doc.php?docid=38047&group_id=183361
AlphaMail Home Page: sourceforge.net/projects/alphamail
Boost C++ Libraries: www.boost.org
IMAP Performance Benchmarks: whizzo.uoregon.edu/public/src/mailperf/results.html
US CERT: www.us-cert.gov
|Updates from LinuxCon and ContainerCon, Toronto, August 2016||Aug 23, 2016|
|NVMe over Fabrics Support Coming to the Linux 4.8 Kernel||Aug 22, 2016|
|What I Wish I’d Known When I Was an Embedded Linux Newbie||Aug 18, 2016|
|Pandas||Aug 17, 2016|
|Juniper Systems' Geode||Aug 16, 2016|
|Analyzing Data||Aug 15, 2016|
- Updates from LinuxCon and ContainerCon, Toronto, August 2016
- NVMe over Fabrics Support Coming to the Linux 4.8 Kernel
- What I Wish I’d Known When I Was an Embedded Linux Newbie
- New Version of GParted
- Tech Tip: Really Simple HTTP Server with Python
- Analyzing Data
- All about printf
- Tor 0.2.8.6 Is Released
- Returning Values from Bash Functions
With all the industry talk about the benefits of Linux on Power and all the performance advantages offered by its open architecture, you may be considering a move in that direction. If you are thinking about analytics, big data and cloud computing, you would be right to evaluate Power. The idea of using commodity x86 hardware and replacing it every three years is an outdated cost model. It doesn’t consider the total cost of ownership, and it doesn’t consider the advantage of real processing power, high-availability and multithreading like a demon.
This ebook takes a look at some of the practical applications of the Linux on Power platform and ways you might bring all the performance power of this open architecture to bear for your organization. There are no smoke and mirrors here—just hard, cold, empirical evidence provided by independent sources. I also consider some innovative ways Linux on Power will be used in the future.Get the Guide