Milter-greylist

On Mon, 8 Feb 2016, Jim Klimov jimklimov@... [milter-greylist] wrote:
>
> Hi Bob, do you by chance have stuff like GreetingDelay or somesuch 
> in sendmail and/or some of the milters, maybe newly introduced in 
> yiur remade setup?

I am not finding any delay statements.  Manual telnet to port 25 
produces an immediate response from a local host.

> And DNS can lag too, yes :-)

It is likely that sendmail does reverse DNS for each connection.  If 
reverse DNS times out, that would likely produce a large delay.

> On another hand, why does a consistent and relatively short delay 
> bother you? Humans do not normally connect (on 25/tcp 
> unauthenticated) to your smtp so likely won't notice the lag? And on 
> 587/tcp you can require auth and do away with most milters and other 
> protections.

I am not sure if I should be concerned about delays.  There is already 
port 587/tcp support in my setup.

Bob
-- 
Bob Friesenhahn
bfriesen@..., http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/