SPF infusionmail.com IPs?

Max Classic
#1

I’ve added infusionmail.com to my spf txt record, but keep getting dmarc warnings for IPs that resolve to subdomains for infusionmail.com. So far they’ve been in the 208.76.24.* range, but in documentation https://classic-infusionsoft.knowledgeowl.com/help/configure-your-spf-records the actual IP range isn’t listed.

Is this documented somewhere?

#2

Here is the article: https://classic-infusionsoft.knowledgeowl.com/help/infusionsoft-email-ip-range

Here is the direct link to the lookup: https://mxtoolbox.com/SuperTool.aspx?action=spf%3Ainfusionmail.com&run=networktools

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#3

Thanks, exactly what we needed!

Cheers!

#4

We keep getting DMARC notices with SPF failures from various postmasters for individual Infusionsoft IP addresses that fall within the ranges set in our spf record.

For instance the source_ip 35.227.130.43 will fail even though it falls within 35.227.130.0/24 noted in the spf record. I’ve verified our spf record multiple times. Any gotchas when providing ip ranges in an SPF record?

#5

Here is our SPF record:
v=spf1 ip4:35.227.130.0/24 ip4:64.98.36.17 ip4:64.98.42.0/24 ip4:70.166.189.64/29 ip4:70.166.203.176/28 ip4:104.16.42.4 ip4:104.16.43.4 ip4:176.58.123.242 ip4:208.76.24.0/22 ip4:216.40.42.4 ip4:216.40.42.17 ip4:216.40.44.0/24 ~all

#6

Any ideas on why specific IPs would fail SPF that are within your IP range?

#7

Hey, @Ian_F_Hood. I talked to Support they said not to list the IPs in the spf record and to just use: v=spf1 mx include:infusionmail.com ~all

Here is the technical explanation from one of Sys Admins:

they don’t need to add our IPs to SPF anyway
we use our own domain as the envelope sender
"mailer@infusionmail.com"
so SPF gets checked against infusionmail.com
which, as it happens, lists all of the IP ranges we send from

also they already had our ranges added with these two
ip4:208.76.24.0/22 ip4:35.227.130.0/24
which I see are in the record you pasted

#8

@martinc we originally were using ’ mx include:infusionmail.com ~all’ and were getting failures for individual ips in your range. This is why I tried listing all the IP ranges.

#9

@martinc we originally were using ’ mx include:infusionmail.com ~all ’ and were getting failures for individual ips in your range. This is why I tried listing all the IP ranges. If I switch back to the record recommended by the sys admins, how can we go about reporting ips that fail SPF?

#10

Hi, @Ian_F_Hood. You can post them here or private message me or @David_Carriger, the Sys Admin. We would need the spf record you were using at the time and a mail header that shows a failure for a particular IP.

#11

Thanks, I will make the changes. Appreciate the help!

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