Getting SOFTFAIL results on the SPF check for your emails

[LLJKTechnogeek]

This results in emails from you guys to frequently show up in my spam folder.

Specifically, here's a subset of the headers that appeared in my most recent mod update alert email:

Received-SPF: softfail (google.com: domain of transitioning [email protected] does not designate 2600:3c00::f03c:91ff:fef1:90b6 as permitted sender) client-ip=2600:3c00::f03c:91ff:fef1:90b6;
Authentication-Results: mx.google.com;
       spf=softfail (google.com: domain of transitioning [email protected] does not designate 2600:3c00::f03c:91ff:fef1:90b6 as permitted sender) [email protected]

And here are the results from "dig -t TXT esoui.com":

; <<>> DiG 9.9.5-3ubuntu0.10-Ubuntu <<>> -t TXT esoui.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 13926
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;esoui.com.                     IN      TXT

;; ANSWER SECTION:
esoui.com.              299     IN      TXT     "google-site-verification=zMASgZwFfdTOFX77pIy_sBkOPr-KoMN1vMzh5c4KJb8"
esoui.com.              299     IN      TXT     "google-site-verification=0FElYzyIaL7m7UrJKRPh6GgNXAromB2Czri-ntGpPbw"
esoui.com.              299     IN      TXT     "v=spf1 mx ip4:45.79.1.181/32 include:aspmx.googlemail.com ~all"

;; Query time: 88 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Thu Feb 02 18:48:37 STD 2017
;; MSG SIZE  rcvd: 275

It looks like you need to add a valid IPv6 address range to that one TXT record.

[Dolby]

Very nice catch LLJKTechnogeek!

I'll get the DNS fixed up later tonight. Sorry for the trouble.

Edit: SPF record updated to include IPv6 address.