How do I prevent 451 4.7.1 Greylisting in action

[lucas]

How can I prevent my emails being delayed / not sent - the following message
come up every time I send an email

Your message did not reach some or all of the intended recipients.

Subject:
Sent: 14/06/2007 14:10

The following recipient(s) cannot be reached:


451 4.7.1 Greylisting in action, please come back in 00:15:00

 

[Brian Tillman]

How can I prevent my emails being delayed / not sent - the following
message come up every time I send an email

Your message did not reach some or all of the intended recipients.

Subject:
Sent: 14/06/2007 14:10

The following recipient(s) cannot be reached:


451 4.7.1 Greylisting in action, please come back in
00:15:00

Graylisting is an anti-spam device and you can't control it. It is a
function of the server you're trying to reach. See this:
http://en.wikipedia.org/wiki/Graylisting