I'm not really following, but you may want to read this: http://www.openspf.org/SPF_Record_Syntax#mx
If you have two MX records in this zone: IN MX 10 mx1.mydomain.com IN MX 20 mx2.mydomain.com And you have an SPF record that contains this: v=spf1 a mx mx:anotherdomain.com Then, all 'A' records of the current zone/domain are tested, the 'MX' record of the current zone/domain is tested, and the 'MX' record for anotherdomain.com is also tested. Josh On Mon, Dec 14, 2015 at 10:22 AM, That One Guy /sarcasm < [email protected]> wrote: > though the mx is defined mx1 and mx2 to the mailhost, the spf just has the > mailhost domain, which has alot of mx records since its a hosting platform > > On Mon, Dec 14, 2015 at 9:21 AM, That One Guy /sarcasm < > [email protected]> wrote: > >> so having the servername of the mailhost is redundant as an additional >> allowed mx, since its already the mx for the domain? >> >> On Mon, Dec 14, 2015 at 9:18 AM, Josh Baird <[email protected]> wrote: >> >>> No - it's "allowing" the MX of the current domain to send mail. >>> >>> >>> >>> >>> >>> On Mon, Dec 14, 2015 at 10:13 AM, That One Guy /sarcasm < >>> [email protected]> wrote: >>> >>>> >>>> v=spf1 a mx mx:server name.com ip4:x.x.x.x ip4:y.y.y.y all >>>> >>>> This is the record, Its autogenerated in bind9 as an spf type, >>>> previously we used txt type with the spf flag. when i run it through >>>> mxtoolbox it shows a blank mx and the mail host >>>> >>>> On Mon, Dec 14, 2015 at 9:08 AM, That One Guy /sarcasm < >>>> [email protected]> wrote: >>>> >>>>> we have an issue with a closed account still spamming, its not a local >>>>> deal or using our email servers, just altered from >>>>> >>>>> Looking at my spf, there is a blank mx in it, is this effectively >>>>> allowing all mail servers? >>>>> >>>>> -- >>>>> If you only see yourself as part of the team but you don't see your >>>>> team as part of yourself you have already failed as part of the team. >>>>> >>>> >>>> >>>> >>>> -- >>>> If you only see yourself as part of the team but you don't see your >>>> team as part of yourself you have already failed as part of the team. >>>> >>> >>> >> >> >> -- >> If you only see yourself as part of the team but you don't see your team >> as part of yourself you have already failed as part of the team. >> > > > > -- > If you only see yourself as part of the team but you don't see your team > as part of yourself you have already failed as part of the team. >
