What is SPF Permerror?

SPF=Permerror indicates that there is a fundamental problem with the SPF record, making it impossible to determine if the sending server is authorized or not.

What is the 10 DNS lookup limit?

During SPF check, every time an email is sent from your domain, your recipient’s email server performs DNS query requests, also known as DNS lookups to check the presence of authorized IP addresses in your DNS and match them to the ones in the received email’s return-path header. However, RFC limits the number of DNS lookups to 10. This is known as the 10 DNS lookup limit.

Am I exceeding SPF Too Many DNS Lookups limit?

If you are worried about exceeding the lookup limit for SPF, you can check your record instantly using our SPF record checker tool.

How to fix SPF Permerror?

A more effective way to avoid SPF errors is to deploy an SPF flattening tool that is automatic and hassle-free – like PowerSPF!

Zoho BIMI Configuration Guide: Get Your Verified Checkmark

There’s a new player in the market joining the BIMI support team—and this time, it’s Zoho Mail! Google introduced BIMI to Gmail as early as 2021, and since then, we have seen more major industry players join in, and for all the right reasons. With Zoho BIMI enabled, senders can also display their brand logos with a blue verified checkmark in Zoho mailboxes. According to Zoho’s feature update document, Zoho started supporting BIMI logo display from January 2024.

BIMI – Brand Indicators for Message Identification, is an email authentication protocol that helps organizations display their brand logos in customer inboxes. BIMI helps you visually verify senders as genuine. Even better, email service providers like Gmail and now Zoho Mail also attach a blue verified checkmark against BIMI-authenticated senders.

BIMI logos are only displayed in recipient inboxes if the recipient’s email client supports BIMI. Currently, not many email providers support BIMI, though it’s an excellent way to establish brand trustworthiness.

Let’s learn more about how to configure your Zoho BIMI logo to start sending branding emails to Zoho accounts!

Preparing For Zoho BIMI Configuration

To get started with your Zoho BIMI configuration, here are some mandatory requirements:

1. Set Up SPF for Your Domain

SPF or Sender Policy Framework helps authenticate emails by authorizing legitimate senders for your domain. You can define a list of IP addresses, who are permitted to send emails from your domain. Any IP outside this list will be treated as spam. To set up SPF, you can use an SPF record generator tool, and publish the TXT record in your DNS.

2. Set Up DKIM for Your Domain

If you have already configured SPF, this step is optional. However, we recommend setting up DKIM for enhanced security. DKIM or DomainKeys Identified Mail ensures that the email came from the claimed sender and wasn’t changed along the way, like a tamper-proof seal on a letter. You can create a DKIM record using our DKIM generator tool and publish it on your DNS.

3. Configure DMARC for Your Domain

BIMI requires DMARC configuration. To enable BIMI logo display in Zoho accounts, you need to create a DMARC record and publish it on your DNS. Domain-based Message Authentication, Reporting and Conformance (DMARC) helps domain owners set up a policy for emails that fail authentication. It can help prevent phishing and spoofing attacks and the configuration process is similar.

4. Enforce Your DMARC Policy

BIMI requires a DMARC policy mode of quarantine or reject with a policy application percentage of 100% (pct=100). To configure Zoho BIMI, you must gradually enforce your policy first and then start your BIMI setup process.

5. Get a VMC (Verified Mark Certificate)

A VMC helps organizations verify the ownership of their brand logo so it can be displayed in inboxes that support BIMI. VMC isn’t a mandatory requirement for BIMI logo display, but some mailbox providers like Zoho Mail do require it. Established root certificate authorities like DigiCert can issue VMCs for businesses.

Zoho BIMI Configuration: A Step-by-Step Guide

To set up your BIMI logo to be displayed in Zoho inboxes, follow these steps:

1. Prepare your brand logo for BIMI, keeping in mind the following specifications:

Convert your BIMI logo to SVG tiny 1.2 with a BIMI SVG logo converter tool.
Your logo should have a square aspect ratio and be less than 32 KB in size.
Keep the background a solid color.
Do not use any animation or interactive elements in your logo.

2. Sign up with PowerDMARC for free and navigate to PowerToolbox > BIMI record generator.

3. Create your BIMI record by entering your domain name, enter the URL for your logo image and VMC certificate.

4. Publish the BIMI record in your DNS to enable BIMI for Zoho Mail.

TXT record value (example): “v=BIMI1;l=https://domain.com/image.svg;a=https://domain.com/certificate.pem”

5. Finally, verify your BIMI record using the PowerDMARC BIMI lookup tool.

Following this you will be able to see your BIMI logo displayed in Zoho mailboxes, and for all email clients that support BIMI.

Establishing Brand Trustworthiness with Zoho Verified Checkmarks

Just like Google, Zoho Mail also displays blue verified checkmarks against emails with BIMI implemented and the domain authenticated correctly. This is another seal of trust that makes sure your customers instantly recognize your brand as genuine, before even opening your mail.

To get expert assistance in configuring email authentication protocols like BIMI and DMARC, contact us today!

About
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Yunes Tarada

Domain & Email Security Expert at PowerDMARC

Yunes is an Operations Team Lead at PowerDMARC with expert knowledge in email authentication and security. Yunes is a Microsoft-certified Azure Administrator Associate with certifications in CompTIA A+ and many more.

BIMI Setup Guide for Zoho Mail – Getting the Blue Verified Checkmark