[MBF]Re: Deleting messages from non-existent local accounts

[Scott Jibben]

Title: Scott Jibben E-Mail Signature

Thanks Darin, I think that I have the SPF record figured out. I came up with: v=spf1 mx -all Only the MX servers should be allowed to send mail. I have -2 for pass and +5 for pass in SmarterMail. In global.cfg it is -1 for pass and +8 for fail. Is my system checking this twice?  Should I turn it off in SmarterMail? Are these good weights for pass/fail? sj Scott Jibben [email] sc...@runspot.net [web] http://runspot.net [voice] 763.551.2510 [toll free] 866.635.7299 On 1/15/2014 3:28 PM, Darin Cox wrote: SPF is perfect for this.  Define your SPF policy in DNS for what servers can send mail for the domains you host, and set the weight for SPF failure appropriately in your Declude config.   See www.openspf.org for more info on setting up the DNS records if you are not familiar with it.   Note that passing SPF is not a guarantee of good mail, and many organizations fail their own SPF policies, so failure doesn’t always mean bad mail, but for forging mail SPF works great.   Darin.   From: Scott Jibben Sent: Wednesday, January 15, 2014 3:54 PM To: community@mailsbestfriend.com Subject: [MBF]Deleting messages from non-existent local accounts   Hello, I'm using SmarterMail 11.7 + declude + MBF. We sometimes get mail from non-existent local accounts.  For example, the return email account is fake; like abc...@runspot.net and it get sent to valid email accounts on the mail server. Is there a way to detect? 1. That the return email account is local to the mail server 2. The local account does not exist Then just delete these messages because they are probably spam. Thanks, -- sj Scott Jibben [email] sc...@runspot.net [web] http://runspot.net [voice] 763.551.2510 [toll free] 866.635.7299