Gary, One good way to check your SPF implementation is to send a message to a gmail account. Gmail will allow you to see the entire message header and includes a line showing that Google checks for SPF.
Shayne -------- Original Message -------- > From: "Shayne Embry" <[EMAIL PROTECTED]> > Sent: Sunday, February 18, 2007 8:06 AM > To: declude.junkmail@declude.com > Subject: Re: [Declude.JunkMail] OT: SPF record question > > Gary, > > You are correct. Message from authenticated accounts to other accounts on > your server will show the originating IP as the last hop. Be assured, this is > not the case with messages leaving your server bound for other locations. > We've been using SPF and SmarterMail successfully for several years; in fact, > it has saved our butts on several occasions. > > As for Hotmail, Yahoo, AOL and the like, it's always a crap shoot anyway. We > have one client that sends a weekly newsletter; one week everything runs > smoothly and the next we'll get 100 messages back from Yahoo. We've given up > trying to figure it out, but SPF is not the culprit. > > Shayne Embry > > > > -------- Original Message -------- > > From: "Gary Steiner" <[EMAIL PROTECTED]> > > Sent: Sunday, February 18, 2007 1:54 AM > > To: declude.junkmail@declude.com > > Subject: Re: [Declude.JunkMail] OT: SPF record question > > > > No, I never belived that the SPF check was run against all the received > > headers. I'm just looking at how Declude does its SPF check on email that > > comes into my server. It always does it on the last hop. But looking at > > the headers of the outgoing messages, (as I showed in my message below from > > February 16, 2007 4:10 PM), the last hop is shown as the IP address of the > > originating Outlook sender. This is why I am confused. Maybe this is a > > flaw in SmarterMail in that it does not list itself in the headers of > > messages that are internal to the server. > > > > I'm just not comfortable with SPF and am worried that I am shooting myself > > in the foot by providing a method for other servers to block my legitimate > > mail. I probably should have done more testing first, but I don't really > > have a good way to specifically check for SPF validity. For example, I > > created a Yahoo account and a Hotmail account. I sent email from my server > > to each. Hotmail sent my message to its junkmail folder, Yahoo did not. I > > have no way to know why Hotmail chose to flag the email as junk and Yahoo > > did not, as neither add any spam checking messages to the header. I can > > see that both do list my mail server as the last hop and not the > > originating Outlook computer as the messages in my server's webmail do. > > > > At this point maybe I will just wait and see if any of my customers > > complain about bounced mail. If I don't hear any complaints, then I > > (probably) don't have anything to worry about. > > > > Gary > > --- This E-mail came from the Declude.JunkMail mailing list. To unsubscribe, just send an E-mail to [EMAIL PROTECTED], and type "unsubscribe Declude.JunkMail". The archives can be found at http://www.mail-archive.com.
