> From: Travis Rabe > > I compleely agree. In a business setting, single failure filtering is very > acceptable and I have had no problems using it with so very few false > positives I don't even hardly keep track anymore.
Actually, in a business setting, missing one or two emails a week can be a huge deal. A single missed email can mean lost business or incurred liability. Home users will have family members try again or can call if they don't get their ebay confirmations. They will get annoyed when their son, away at college and majoring in CS, can't email them anymore because he is running his own mail server as part of a class project. A business setting is > obviously very different than that of an ISP. In a business, lawyers and > CEOs determine what they want coming in and out of the mail servers - > period. True. But, now you are talking content filtering. Dropping porn that can cause work environment problems, stopping emails to forbidden sites (porn, gambling, even employment sites can fit this) filtering outgoing emails for trade secrets, copying ALL mail for regulatory archival purposes (spam too). And speaking of those attorneys, what would be the cost of delaying some types of communications by several days, while FP issues are worked out? There are other situations that can cause the FP issue to get worse. Here is just one: Think of backup plans for small business. Most can't afford full-up hot sites (and even many medium-size companies don't bother). Their backup plan may consist of coming up offsite at a staff member's home in the event of a disaster (we've had clients have to do this for several days, following hurricanes in Miami). With proper equipment, a cable connection, a good backup and the password for their domain registration, they can be up in running quickly. Except now, all their emails would not have what Len terms a "vanity" RDNS (I don't agree with this terminology, as it lumps the use of a domain name in with the frivololity of humorous license plates). Instead, they have proper rDNS, just not with the temporary domain name. If all else is set up correctly, their email should not get blocked, but does using the type of blocking that AOL (and Len) advocate. Note that nothing in this use is meant to imply they are violating their TOS -- in some areas, you can get business class service to a home for only about $10-50 more a month, just for this eventual backup use (in fact, many businesses use less bandwith than many home users, except when downloading updates from MS <g>). Some ISP's do not allow control of rDNS for these classes of service (or only set it up for one IP and can take a couple of days to make changes). And since not all of use are located in NYC (of course, we also didn't go dark this week and know to have generators on hand for emergencies), we don't always have any option in which ISP/carrier is used (not all areas in the US are rquired to allow competition for phone or cable service, many are still protected monopolies). Here, we can use ISDN to connect to any ISP (no per minute charges, so any local access number is good), but all DSL must be only to our local phone company (it is "protected") and the local phone/cable competitor (Knology) is not allowed to sell in this area (so, you are also locked into one cable provider, comcast, which offers no real business service, although some small businesses use it). You can get a dedicated line or frame out to the "real world" (only 10 miles away or so), but leave the local phone company and so incur much higher charges than if the business were moved. Ture, these are issues you might consider when setting up a new business, but have only become issues in the last few years, so many companies did not plan for them (in fact, we had great ISDN service before much of the close by metro area). And moving a business can be a major issue (as opposed to just changing ISP's). Karen --- [This E-mail scanned for viruses by Declude Virus] To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
