Before my question, a rant (not aimed at this forum, I know it isn't your fault!)
[rant]I find this whole issue about getting blacklisted really frustrating.
The aspect of this that I mind is that it seems to be impossible to get an exact cause of our server/IP being added to the blacklist. i.e. there must have been a trigger event (an email with a malformed HELO, a test to check if our server is an open relay and so on) to get us added to each list but can we get that information off them? Can we heck!
So, we spend hours investigating and researching and discussing when we could resolve the issue MUCH quicker if we knew exactly what to look for (which might be interesting and useful but still time spent somewhat unnecessarily).[/rant]
OK, the question. On Friday we edited the properties of the Virtual SMTP server (Access tab, then Connection Control). Before we started it was set to 'All except the list below' and the list was blank, so the ACL was open to all IP addresses. We changed it to 'Only the list below' and added in the IP addresses of our Message Labs servers.
We then sent an SMTP email to my home address which got through. So, we thought everything was hunky dory, until we'd gone home and our systems team called us to say their automated emails weren't going out.
When I was reading the Help files they didn't say this setting was only for inbound connections but my team leader swore blind it was, so we didn't add in our internal address ranges and the test we sent seemed to support his theory.
What's the truth?
JJ
[small][purple]Variables won't. Constants aren't[/purple][/small]
[rant]I find this whole issue about getting blacklisted really frustrating.
The aspect of this that I mind is that it seems to be impossible to get an exact cause of our server/IP being added to the blacklist. i.e. there must have been a trigger event (an email with a malformed HELO, a test to check if our server is an open relay and so on) to get us added to each list but can we get that information off them? Can we heck!
So, we spend hours investigating and researching and discussing when we could resolve the issue MUCH quicker if we knew exactly what to look for (which might be interesting and useful but still time spent somewhat unnecessarily).[/rant]
OK, the question. On Friday we edited the properties of the Virtual SMTP server (Access tab, then Connection Control). Before we started it was set to 'All except the list below' and the list was blank, so the ACL was open to all IP addresses. We changed it to 'Only the list below' and added in the IP addresses of our Message Labs servers.
We then sent an SMTP email to my home address which got through. So, we thought everything was hunky dory, until we'd gone home and our systems team called us to say their automated emails weren't going out.
When I was reading the Help files they didn't say this setting was only for inbound connections but my team leader swore blind it was, so we didn't add in our internal address ranges and the test we sent seemed to support his theory.
What's the truth?
JJ
[small][purple]Variables won't. Constants aren't[/purple][/small]