- Business
Quality Service and Performance
- Multi
Layer Spam protection
- Optional
Anti Virus Scanning (definitions updated hourly)
- Web
Interface in addition to classic mail client operation
- Designated
Administrator for your domain maintains all accounts via Web Interface
and has access to usage statistics and reports for the domain
- Domain
and Individual Account filtering and spam rating management
- Account
forwarding
- Account
aliasing
- Lists
- Autoresponders
- SPF
support
- 50
MB mailboxes
- Optional
Roam Service permits sending out in your domain from a third party
provider that blocks conventional port 25 access (as do most residential
and dialup providers)
- Backup
Mail service on a totally unrelated network
- Seamless
transition from legacy provider
- Optional
Front-End operation provides protection and filtering for conventional
in-house server
- Optional
Calendaring and Instant Messaging services
$25/25 users/month - anti virus scanning $25/25 users/month extra
Basic
function and charge included with most access accounts
Mailwall
services
For
those customers using Microsoft Exchange servers in-house, our Mailwall
services are invaluable.
One of
the main downfalls in the way MS Exchange works is the way it handles
bounces - it attempts to respond to every fake address spam it receives
with an email. This can cause extreme performance issues. By using
the Computer Variations Mailwall service in front of the MS Exchange
server, not only is the amount of unwelcome traffic received reduced
tremendously, but also those performance issues are obviated.
Customers
who have Exchange servers choose one of two levels of protection that
we offer:
- Mailwall 1. This is an extremely simple - zero maintenance
- configuration in which our mail server becomes the listed (in
the DNS) default mail host for the domain, and acts very much like
a firewall for mail for the whole domain. First a global filtering
is applied (rejects approximately 65% of incoming connections) then
incoming messages are held in queue for just the time necessary
to query your server to ask if it will accept for this particular
user; if authorized by your server it is forwarded immediately.
Should your server be down temporarily, messages are queued for
72 hours. Should our main server be down, they are queued at our
backup server for a similar period. Note that the Mailwall 1 configuration
is non-tweakable, server defaults apply - naturally these are somewhat
more permissive than a carefully configured system, see next option.
- Mailwall
2. Individually maintained forwards. In this configuration our
server is configured on a per mailbox basis by either your domain
administrator or the individual users. Global defaults for the domain
can be set as well as individual choices. All of them can override
the second level spam weighting and filtering at the server (the
first 65% of rejects still apply). Logs are available to users of
the results of their choices for additional fine-tuning. Global
reports for the domain are available to the administrator. Queuing
to allow for temporarily unavailable servers is just as for the
Mailwall 1. This second option is much more powerful - and of course
requires some more administration.
With
either option, it is recommended that the MS Exchange server be configured
to accept mail only from our server - this can be done in the network
firewall for example - this will provide a significant additional
level of security. Outgoing mail can optionally be sent through our
mail server also. An SPF record is strongly recommended to further
optimize the spam weighting process.
Costs:
Mailwall
1 is billed at $25/month, flat rate. Optionally,virus scanning
- with definitions updated on an hourly basis 24/7 - is an additional
$25 per month, flat rate.
Mailwall
2 is billed at $25 per 25 users per month. Optionally, virus scanning
- with definitions updated on an hourly basis 24/7 - is an additional
$25 per 25 per month.
