95+% of the time, email is immediate, true.
More like 99%+ of the time. When it's not, I hear about it.
But it is not uncommon for
mail to be delayed for hours or days either,
It's uncommon enough that when it does happen I get a phone call about a
user "not being able to receive email".
even without greylisting.
Greylisting is an ugly hack that I'm hesitant to even dignify by having
the topic of serious conversation.
I'm not at all sure what you're talking about regarding email vs web
form reliability. What are the links in that chain?
The email client can malfunction in some way. But then again, so can a
browser. The sending server can malfunction in some way. But so can the
web proxy. Then WAN link can go down on the sending side. But then, that
can happen with both web and email. The receiving side's WAN can go down
too. But in the case of a mail server it tries and tries and tries to
get the message through as quickly as possible. The browser and proxy
server certainly don't. They just drop it if anything goes wrong.
You tell me that email is unreliable. And yet anyone can see that it
*is* quite reliable, until you, as a mail admin, foolishly introduce the
self-DOSing technique of greylisting, and fall on your own sword.
You can go on about how it makes sense to fall on your sword. But I'm a
realist, and not buying it.
Have fun in your ivory tower.
I'll also be typing this post up, putting a stamp on it, and mailing it.
It might reach you there faster. ;-)
How many people here actually use greylisting and don't get complaints?
Our ISP, who previously handled our email certainly didn't introduce any
noticeable delays. And nobody ever got a noticeable amount of spam, or
reported to me a missed or late email.
Amazing, IMO. But it was obviously done without the ridiculous and
unacceptable practice of greylististing.
I want to achieve the results that Windstream does.
-Steve