Ok, I wasn't aware about this Hotmail pick and choose approach to the SPF specification. Kinda hard to make things work if you can't trust the SPF testing tools available on the Internet :-( Is this documented somewhere ?
Guess I just got myself a puzzle, I didn't create an "exists" based SPF record just for the fun, but because my company uses a lot of different single mailserver ip's Is there any known limits to the amount of nesting allowed when using the include statement in SPF records ? Best regards Henrik Schack On Thu, Dec 20, 2012 at 3:52 AM, Franck Martin <[email protected]> wrote: > yes, do not use exists in your SPF record if you want SPF to work with > hotmail (and may be others). > > From: Roland Turner <[email protected]> > Date: Wednesday, December 19, 2012 5:16 PM > To: Tim Draegen <[email protected]> > Cc: "[email protected]" <[email protected]> > Subject: Re: [dmarc-discuss] [ALERT] Re: Many SPF temperrors the last few > days > > Oh, I didn't think to actually look at the record... Medium/large > receivers are likely ignore exists: specifications because they don't query > SPF at SMTP time, they use a pre-crawled copy of the relevant DNS records. > > Note that the only problem that exists: uniquely solved (being able to > find out who is sending email claiming to be from your domain) is now part > of what DMARC does anyway. > > - Roland > > > > On 19/12/2012 22:18, Tim Draegen wrote: > > Henrik, I may be misremembering this, but there may be issues with the > exists mechanism and hotmail. If you can, you might try to remove your > exists: check for a few days to see if your data changes. > > =- Tim > > > On Dec 19, 2012, at 5:16 AM, Henrik Schack <[email protected]> wrote: > > No, it seems to be mostly email send directly to Hotmail. > Best regards > Henrik Schack > > > > On Wed, Dec 19, 2012 at 11:00 AM, Roland Turner < > [email protected]> wrote: > >> Unable to retrieve, or SPF failure because it's reporting on messages >> forwarded to a hotmail.com etc. address? >> >> It may be that these have been going on for some time but that the sudden >> change that you're noticing is simply Microsoft turning this on. >> >> - Roland >> >> >> >> On 15/12/2012 04:47, Henrik Schack wrote: >> >> Ahh it seems to be Hotmail being unable to retrieve our SPF record :-( >> >> Best regards >> Henrik Schack >> >> >> >> On Fri, Dec 14, 2012 at 8:23 PM, Henrik Schack <[email protected]>wrote: >> >>> Hi >>> I have seen a lot of SPF temperrors in my DMARC reports the last few >>> days, Am I the only one with this problem ? Domain in question is tdc.dk >>> >>> >>> -- >>> Best regards >>> Henrik Schack >>> IT-specialist >>> TDC A/S >>> >> >> >> >> -- >> Venlig hilsen/Best regards >> Henrik Schack >> IT-specialist >> TDC A/S, Online KundeCenter Privat, Udvikling >> Teglholmsgade 3 >> 0900 København C >> Tlf + 45 6669 4631 >> Mobil +45 4252 5569 >> E-mail [email protected] >> Web http://tdc.dk/ >> >> >> >> _______________________________________________ >> dmarc-discuss mailing >> [email protected]http://www.dmarc.org/mailman/listinfo/dmarc-discuss >> >> >> >> NOTE: Participating in this list means you agree to the DMARC Note Well >> terms (http://www.dmarc.org/note_well.html) >> >> >> -- >> Roland Turner | Director, Labs >> TrustSphere Pte Ltd | 3 Phillip Street #13-03, Singapore 048693 >> Mobile: +65 96700022 | Skype: roland.turner >> [email protected] | http://www.trustsphere.com/ >> >> > > > -- > Venlig hilsen/Best regards > Henrik Schack > IT-specialist > TDC A/S, Online KundeCenter Privat, Udvikling > Teglholmsgade 3 > 0900 København C > Tlf + 45 6669 4631 > Mobil +45 4252 5569 > E-mail [email protected] > Web http://tdc.dk/ > > _______________________________________________ > dmarc-discuss mailing list > [email protected] > http://www.dmarc.org/mailman/listinfo/dmarc-discuss > > NOTE: Participating in this list means you agree to the DMARC Note Well > terms (http://www.dmarc.org/note_well.html) > > > > > _______________________________________________ > dmarc-discuss mailing > [email protected]http://www.dmarc.org/mailman/listinfo/dmarc-discuss > > > > NOTE: Participating in this list means you agree to the DMARC Note Well terms > (http://www.dmarc.org/note_well.html) > > > -- > Roland Turner | Director, Labs > TrustSphere Pte Ltd | 3 Phillip Street #13-03, Singapore 048693 > Mobile: +65 96700022 | Skype: roland.turner > [email protected] | http://www.trustsphere.com/ > > > _______________________________________________ > dmarc-discuss mailing list > [email protected] > http://www.dmarc.org/mailman/listinfo/dmarc-discuss > > NOTE: Participating in this list means you agree to the DMARC Note Well > terms (http://www.dmarc.org/note_well.html) > > -- Venlig hilsen/Best regards Henrik Schack IT-specialist TDC A/S, Online KundeCenter Privat, Udvikling Teglholmsgade 3 0900 København C Tlf + 45 6669 4631 Mobil +45 4252 5569 E-mail [email protected] Web http://tdc.dk/
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