~DOMPROS
"Pinging the server with a mail program is in common usage world wide.
Guessing that it won't work, is not practical..."
As this may work with some dialup ISP's, NOT guessing but speculating that it may not work IS practical.
Although I do not know ALL facts of this issue, which I never claimed - My remark was speculative, logical, and without taking a survey of different dialup users. One with a "practical" mind can only theorize the following............
1. "Keep Alive" type of apps are popular. Can you tell me that the only function of these apps is the equivalent of sending a TCP:110 packet to a mailserver?
Why then do some claim to go as far as to include simulated web-browsing on MANY different sites? Here's one site where you can have a look:
2. Dialup ISP's have you "dropped" for a reason. That reason is most have more users than they can handle and need to continually recycle IP's which is not done by holding up dead carriers. I don't think that they would let a seemingly crucial need be thwarted by allowing the majority of the public (whose email clients are configured to do frequent mailserver checks for new emails), and are commonly running, while the users are connected online.
There may also be political corporate pressure on ISP's from the Telephone Companies who sometimes ARE the ISP.
A Tel. Co. may have an issue due to their flatrate local calling plans which enable a consumer to have a carefree attitude in regards to unnecessarily keeping a line open and affecting the communication networks. Let's face it - there are way too many people out there who while watching TV would leave the dialup connection opened without regard to someone who needs to do referencing online and continually receives busy signals on dialup. Even more people don't care about the ISP.
For ISP's and Telephone companies to hold dead carriers would require spending alot more $$$ on hardware to support nothing but people who don't care or don't like to wait for the dialup and handshake.
I cannot logically comprehend that they would let a safeguard, against unnecessarily spending more $$$ on hardware or losing more $$$ due to losing customers tired of dialup busysignals, be thwarted by frequent pop3 hits to the same mailserver/s continually.
Please let me know how what you say is fact.
Does anyone else think that I have presented a case here?