How can I get qmail to work with both an smtp whitelist and smtp authentication?
If my IP is whitelisted, SMTP authentication does not seem to work (error: "the server does not support SMTP password authentication). This is particularly annoying when using our SMTP server on a roaming device, eg. an iPhone.
As soon as the iPhone is not using the whitelisted IP (ie. not in the office, but over 3G), then SMTP authentication works fine.