To publish an SPF record, you will need access to your domain’s DNS control panel. If you are using a hosting provider, this process is fairly straightforward – just check their technical documentation. If you are unsure how to do this, you can contact support team or your domain administrator for assistance.
To learn how SPF works and why it is such an important security feature, read the article “What is SPF and how to configure it for a domain?”
Start by gathering a list of all domains you own, as you need to update or prepare a new, separate SPF record for each domain. Make sure you also include inactive (aka parked) domains that do not send emails, to also protect them from abuse and potential phishing.
Identify all services which send messages on behalf of your domain(s), including external tools. This includes:
IMPORTANT: If the SPF record does not include all services or servers sending mails on behalf of your domain, receiving servers may direct messages into spam. Remember to update your record after any change in IP or sending tool.
The SPF is expressed as a single string of text, published as a DNS TXT. It consists a list of values (usually IP addresses and domain names) and tags, i.e. various mechanisms and modifiers.
Each domain must have only one SPF record.
Remember, your new SPF record may require up to 48 hours to take effect.
For example: v=spf1 ip4:192.0.2.0 ip6:2001:db8: :cd30
! The given value is an example and does not point to specifics of EmailLabs servers.
For example: v=spf1 ip4:192.0.2.0 ip6:2001:db8: :cd30 include:domainname.com
To authorize EmailLabs to send emails on behalf of your domain, add the following entry to your SPF TXT record:
include:_spf.emaillabs.co
Receiving server checks whether an IP from which the message was sent is indicated in ip4/ip6 or whether it matches servers pointed by “include” mechanism.
Note: A single SPF record cannot have more than 255 character-string and should not contain more than 10 lookups to other domains or servers. Each parameter should be separated by a space.
// Instruction above presents only a basic overview of the mechanisms that an SPF record can be composed with. You may find records that also include ptr, exists or redirect mechanisms//
“All” mechanism (always matches) is placed at the end of the SPF record. It indicates what policy and how strictly it should be applied when the receiving server detects a sender that is not authorized in your SPF record.
The “all” mechanism can contain various qualifiers:
For example: v=spf1 ip4:192.0.2.0 ip6:2001:db8: :cd30 include:domainname.com ~all
Mechanisms listed after the “all” will be ignored, so remember to put it at the very end of the record.
In addition to SPF, we also recommend configuring DKIM and DMARC. The above authentication methods provide enhanced domain security and increase the likelihood of proper delivery of Emails to the recipient’s mailbox.
Product and Technical Insights Specialist
Natalia abandoned her career as an experimental biologist for the digital universe and new technologies. She likes to know something about everything and everything about something. Breathlessly follows and describes news from the email world. Supports EmailLabs users in integrating, analyzing, and reporting deliverability. Helps to increase domain security with implemented DNS records and BIMI standard, moreover educates on good mailing practices.
See more articles
We are delighted to announce that Vercom S.A., the company behind the EmailLabs project, has successfully completed the ISO 22301 certification process. This significant achievement underscores our commitment to...
EmailLabs, as part of the Vercom group, proudly announces its full commitment to aligning its ICT services with the latest cybersecurity standards. In response to dynamically changing regulations, the...
Best practices, Compliance & Security
As we step closer to a digitally connected future, ensuring inclusivity in our marketing strategies is more important than ever. Email, a cornerstone of digital communication, must evolve to...
We are pleased to announce that MessageFlow, a product from the Vercom S.A. group, has received the prestigious CSA (Certified Senders Alliance) Certification. This recognition not only underscores the...
The increasing number of phishing attacks each year, and the projection that this trend will continue to escalate, aren’t likely to astonish anyone. This can be attributed, in part,...
With the emergence of the Covid-19 pandemic, many brands have been challenged to adapt in a short period to the changed reality and new consumer attitudes. That meant reorganizing...
Best practices, Email Marketing
Sending generic emails might drive some results. But, in today’s competitive market, some isn’t good enough. To send emails that resonate with your subscribers, it’s crucial to focus on...
If you’re sending more than 5,000 emails a day, you need to pay attention. Microsoft just dropped a major announcement that’s going to change how your emails get delivered....
Best practices, Email Authentication
Email headers may seem like a cloud of confusion, but fear not! In this ultimate guide, we will break down email headers and make them crystal clear. We’ll start...
Best practices, Email Marketing
Sending generic emails might drive some results. But, in today’s competitive market, some isn’t good enough. To send emails that resonate with your subscribers, it’s crucial to focus on...
If you’re sending more than 5,000 emails a day, you need to pay attention. Microsoft just dropped a major announcement that’s going to change how your emails get delivered....
Best practices, Email Authentication
Email headers may seem like a cloud of confusion, but fear not! In this ultimate guide, we will break down email headers and make them crystal clear. We’ll start...
Does your inbox feel like a never-ending to-do list? Are you spending more time sorting emails than actually working? You’re not alone. Millions of professionals struggle with email overload,...
Apple Mail, Email Marketing, Gmail
Efficient email management has become a necessity in today’s digital world. To address this need, email services categorize incoming messages into different tabs or folders, helping users streamline their...
We are delighted to announce that Vercom S.A., the company behind the EmailLabs project, has successfully completed the ISO 22301 certification process. This significant achievement underscores our commitment to...
Do you ever wonder how many people actually open the emails you send? Knowing the number of people who open your emails is essential for understanding the effectiveness of...
Gmail has become a cornerstone of modern email communication, offering a dynamic platform that caters to both personal and professional needs. Since its inception in 2004, Gmail has consistently...
EmailLabs, as part of the Vercom group, proudly announces its full commitment to aligning its ICT services with the latest cybersecurity standards. In response to dynamically changing regulations, the...
