Questions tagged [spf]

Sender Policy Framework (SPF) is a system designed to prevent email spoofing/forgery

Sender Policy Framework (SPF) is a system designed to prevent email spoofing/forgery

529 questions
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SPF for subdomain

I need to configure SPF record for a subdomain. DNS for the main domain (I use Google Mail): IN MX 1 aspmx.l.google.com. IN MX 10 aspmx3.googlemail.com. IN MX 10 aspmx5.googlemail.com. IN MX 10 aspmx4.googlemail.com. IN MX 10 …
Igor
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SPF, DKIM and DMARC all set but dmarc-reports keep saying the opposite

I'm losing my mind (again) on something about e-mails. I have a Kimsufi/OVH (Debian Wheezy 7.10) server. I have postfix and dovecot all set. My main domain/hostname is mywebsite.fr, and i'm using mywebsite.fr set on mywebsite.fr. I set spf, dkim and…
Vae
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Regex to extract only IPv4 addresses from text

I've tried to extract only IP addresses from the the given example input, but it extracts some text with it. Here's my code: $spfreccord="v=spf1 include:amazonses.com include:nl2go.com include:smtproutes.com include:smtpout.com ip4:46.163.100.196…
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SPF Exists and Redirect

I've been helping a client with their email system and realised that their webmaster entered the following as their SPF record. v=spf1 exists:%{i}._spf.somedomain.com redirect=_spf.somedomain.com ?all I've looked into the exists and redirect…
Steven Parson
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How does SPF/DKIM "auto authentication" work on mail chimp?

Mail chimp offers three levels of authentication when doing email campaigns. Manual Authentication No Authentication Auto Authentication From what I understand Manual Authentication is when you set up your own SPF/DKIM records on your DNS. No…
Chris
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Records can not be found

Issue: my SPF Record (TXT) can not be retrieved from the DNS entry of the domain zwischengas.com In my DNS entry I have one line for the SPF Record (as TXT entry): @ IN TXT "v=spf1 ip4:188.a.b.c ip4:xyz/22 ip4:xyz/24 ip4:xyz/21 ip4:xyz/24…
basZero
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Why is it acceptable for my mail from to be different to my from header?

There's something that's always bothered me about SPF, why doesn't it validate the From header? As I understand it, an SMTP server will SPF validate the hostname provided during the MAIL FROM or ENVELOPE FROM SMTP commands (my examples are from…
Matt Brindley
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SPF records for many servers with wildcard

I email a large number of people (they all asked for the email, don't worry) and we're going to shard the email sending process across three servers. The emails would either be sent from web1.mydomain.com, mail1.mydomain.com or mail2.mydomain.com I…
Grim...
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How do I make HELO publish an SPF record? SPF_HELO_NONE - SPF: HELO does not publish an SPF Record

Why is this question closed? There are hundreds of SPF record questions on StackOverflow that are not closed, why this one? My environment: hMailServer 5.6.8 on Windows Server 2022 Standard Let's say I have two domains (I don't really own these…
user3163495
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How to set TXT SPF DNS records in AWS Route53 using CloudFormation?

I am using AWS CloudFormation to manage my site DNS records in AWS Route53. To define the SPF records, up until now I have been using the following template snippet: RecordSetGroup: Type: "AWS::Route53::RecordSetGroup" Properties: …
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?all -all and ~all in DNS (spf) configuration

I tried to configure/authenticate my domain DNS with email marketing services. To authenticate SPF I need to add some code. I want to use various services and in the TXT instructions they provide, at the end, some use -all, others ~all, and some…
IXN
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Amazon SES IP Fails SPF Check in DMARC

I use Amazon SES for transactional emails and use the WP SES Plugin to integrate with my WordPress. SPF fails for some of my emails which has the IP starting with 54.240.27. This seems to be Amazon SES IP. I have the following SPF txt added to my…
Abhishek R
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SPF failure I don't understand with mailchimp

In a nutshell I've configured a SPF policy on my domain but I receive a dmarc report with an failure. I don't understand why there is this failure. More context I've configured the following spf policy for my domain zerowasteparis.fr: v=spf1…
gturri
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Not able to generate DKIM record for .net domain in google app

I'm using google apps for mail service. I have generated and submitted DKIM records for .co and .in domains successfully. But I'm not able to generate DKIM record for .net domain (say yourdomain.net). It shows an error we are unable to process your…
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gmail Received-SPF: neutral

When I try to send an email with php to my gmail address, I receive the email but there is a problem with spf. It says Received-SPF: neutral But here the spf record seems good…
user1022786
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