Question re: DNS, outsourced anti-spam provider as outbound relay

2013-08-13 Thread Charles Marcus
Hi everyone, This question is about what are best practices with respect to DNS - including reverse DNS - when my mail server is hosted locally, and we use an outsourced anti-spam service for inbound filtering, as well as relaying all outbound mail through them. I have had a recent

Re: Question re: DNS, outsourced anti-spam provider as outbound relay

2013-08-13 Thread Noel Jones
On 8/13/2013 12:16 PM, Charles Marcus wrote: Hi everyone, This question is about what are best practices with respect to DNS - including reverse DNS - when my mail server is hosted locally, and we use an outsourced anti-spam service for inbound filtering, as well as relaying all outbound

Re: Question re: DNS, outsourced anti-spam provider as outbound relay

2013-08-13 Thread Robert Schetterer
Am 13.08.2013 19:16, schrieb Charles Marcus: Hi everyone, This question is about what are best practices with respect to DNS - including reverse DNS - when my mail server is hosted locally, and we use an outsourced anti-spam service for inbound filtering, as well as relaying all outbound

Re: Question re: DNS, outsourced anti-spam provider as outbound relay

2013-08-13 Thread Charles Marcus
On 2013-08-13 1:41 PM, Noel Jones njo...@megan.vbhcs.org wrote: Does anyone see any problem with this email, as far as DNS/reverse DNS goes? All the DNS hostnames/IPs appear to match. I see nothing whatsoever to complain about. Thanks Noel. You don't appear to have SPF nor DKIM

Re: Question re: DNS, outsourced anti-spam provider as outbound relay

2013-08-13 Thread Noel Jones
On 8/13/2013 1:02 PM, Charles Marcus wrote: You don't appear to have SPF nor DKIM configured. While in no way required, those do give some assurance that the mail is not forged, and may help. Or may not help, since you don't really know why outlook is complaining. Hmmm... so this would need

Re: Question re: DNS, outsourced anti-spam provider as outbound relay

2013-08-13 Thread DTNX Postmaster
On Aug 13, 2013, at 20:02, Charles Marcus cmar...@media-brokers.com wrote: On 2013-08-13 1:41 PM, Noel Jones njo...@megan.vbhcs.org wrote: Does anyone see any problem with this email, as far as DNS/reverse DNS goes? All the DNS hostnames/IPs appear to match. I see nothing whatsoever to