DomainKeys Identified Mail (DKIM) is a method for associating a domain name to an email message, thereby allowing a person, role, or organization to claim some responsibility for the message. The association is set up by means of a digital signature which can be validated by recipients.
Questions tagged [dkim]
495 questions
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DKIM Info missing from Mailguns website
I need to add the DKIM key from mailgun.org to our DNS provider due to AOL and Yahoo rejected our messages because the from address has our domain and the sending server is mailgun.
DMARC is implemented by yahoo and aol so I was told that was the…

John Morrow
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4
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2 answers
How does DKIM prevent impersonation?
I understand that DKIM can be used to prevent the spoofing of the "From:" header in an email. Email receivers can validate the DKIM-Signature to verify the "From:" header.
DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; **d=example.com**;…

InfoBill
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1 answer
multiple key with same DKIM selector?
I've got two separate DKIM records which use the same selector.
One is for MailChimp which uses "k1" as selector, and the other one is an old record for which I have not found out yet what it is for.
Is there a way to have two separate keys in the…

Aleksandar
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1 answer
How to maximize deliverability through Amazon SES? DKIM, SPF, Sender Id or all of them?
I'm working on a digital gifting platform that relies on email reaching the inbox. Email is sent through Amazon SES, and has high quality (recipient's name in the email, single recipient, personally crafted message, extremely low bounce and…

Peter
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What is needed to convert ASN.1 data to a Public Key? e.g. how do I determine the OID?
This code relates to DKIM signature verification used in anti-spam efforts.
I have a byte[] from s1024._domainkey.yahoo.com that is ASN.1 encoded, but I don't know if that alone contains enough information to materialize a public key.
Based on this…

makerofthings7
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3 answers
DKIM signatures to Rails application using Amazon SES
We're using the ActionMailer with SMTP as our delivery method and Amazon SES as our outgoing mail provider.
We want to sign the emails with DKIM.
How can we do that?
Thanks

kambi
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4 answers
How to send email with Phpmailer with DKIM signature?
I`m using PHPmailer to sent email.
I installed postfix service and DKIM-Milter to generate the key.
It works fine if i use command line to sent mail, and the mail is with DKIM signature displaying "signed-by:mydomain.com"
Authentication-Results:…

Angolao
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3 answers
Cannot sign anything with PHP openssl_sign?
I am attempting to use PHP-DKIM to send DKIM signed emails. Its a little old so I've had to change some things, but this stumps me:
Warning: openssl_sign() [function.openssl-sign]: supplied key param cannot be coerced into a private key in…

TheLQ
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Configuring SPF/DKIM/DMARC for Google Apps Script
I have a Google Apps Script attached to a spreadsheet, and it uses MailApp.SendMail().
MailApp.sendEmail(recipient, subject, body, {
noReply: true,
htmlBody: htmlBody,
name: emailFromName,
replyTo: replyToEmailAddress,
…

Brad
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3
votes
1 answer
How would SendGrid Automated Security handle SPF record?
I use SendGrid and I have 2 dedicated IPs... My website sends its emails using SendGrid.
At the same time I use G Suite and I personally send my emails using G Suite (Google Workspace)
I want to setup DKIM and SPF records. SendGrid documentation…

Hooman Bahreini
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Symfony 5.2 DkimSigner not working (DKIM lookup KO)
I never ask questions here usually but I'm stuck right now.
I've just upgraded my Symfony projet from 5.0 to 5.2 because I needed to DKIM sign my emails and there is a new feature to sign emails with Symfony Mailer on 5.2 :…

Zerrrr
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3
votes
1 answer
mail-sor-xxx.google.com fails DKIM / SPF check
I got a DMARC report for my domain as xyz.xml where it showed me domains & their corresponding checks (either SPF / DKIM) that failed.My problem is I have one entry as follows:
1
…

YoganA
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generate rsa key valid for dkim validation
I am tring to generate dkim key using golang, my current code is :
package appdkim
import (
"crypto/rand"
"crypto/rsa"
"crypto/x509"
"encoding/asn1"
"encoding/pem"
"fmt"
"os"
)
func Keymaker(path string) {
reader :=…

Lucian Blaga
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3
votes
1 answer
Do Google Apps SMTP servers automatically sign messages with DKIM?
I've configured my Google Apps account to sign messages with my DomainKey (DKIM), and I've confirmed that the signing takes place and works correctly when I send mail directly from my Google Apps account.
Now, I want to combine that with my web…

Maxim Zaslavsky
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Setting up DKIM Private Key? Where do I put it? Details inside
I have been searching for hours for this answer and don't have much experience recently with DKIM.
I've updated my host(HostMonster) DNS TXT records with the DKIM public key information as follows:
default._domainkey.domain.com =…

Chalen
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