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Questions tagged [dkim]

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.

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How can I modify the return-path in a google workspace account that has the capability to send as another workspace account?

I haven't been able to find an answer to this, so forgive me if it's been asked somewhere before. I'm working with non-profit who has a google workspace for non profits account. I'm working on getting our SPF/DKIM/DMARC records set up, and they…
Brian Cook
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Multiple DKIM and SPF records on Google Apps/G Suite/Google Workspace for MailChimp

I'm looking to add SPF and DKIM to my domain for MailChimp. The domain in question is running through G Suite and has the following TXT record for SPF: v=spf1 include:_spf.google.com ~all The domain also has a TXT record for Google DKIM. I've read…
Sam
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Signing email in C#

Based on this question I decided to sign emails send from ASP.NET.MVC to decrease SPAM score of emails, but I have some bug somewhere. Code: public void SendEmail(MailMessage mailMessage) { string domain = "kup-nemovitost.cz"; …
Tomas Kubes
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Sending DKIM signed e-mail to Outlook.COM via PHP

I have a mail server working well with SPF, DKIM and reverse DNS configured. I can send e-mails to Outlook.com using something like: echo "This is only a test" | mail username@outlook.com The problem occurs when I try to send e-mails via PHP using…
user1858109
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This message does not have authentication information or fails to 550-5.7.26 pass authentication checks

I have problem with google and I can't send email to any gmail or Gsuite emails got report from mail server log Feb 17 12:16:30 server postfix/smtp[19451]: 853E35E55A: to=, relay=aspmx.l.google.com[209.85.144.27]:25, delay=0.38,…
ezak
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How do I setup SPF to Pass for Mailchimp, SES and EC2 so that DMARC doesn't partially failing due to misalignment

One of my websites sends emails from various sources including: Mailchimp Mandrill Mailgun Amazon SES From the server itself We have correctly configured SPF & DKIM settings for all of the sources so we decided to add DMARC too and at the same…
Ryflex
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Setting up dkim setup dns zone syntax error on bind in ubuntu

I installed dkim. Now when I setup dns, I have a syntax error This is dns for dkim: 201704._domainkey.example.com IN TXT "v=DKIM1; h=rsa-sha256; k=rsa; s=email; p=blah blah;" root@example:~# named-checkzone example.com…
pedro
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Understand DMARC Email Record

I want to understand my DMARC record. I've done some reading online but I don't understand why in the tag , spf fails but after when they are detailed it actually passes. …
doremifasolasido
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C# DKIMKeySigner Can't open attachments

I'm sending mails to users with attachments. Mails that aren't signed, get a .pdf file (around 64kb) and are working perfectly fine. However, when I sign them for other users, the PDF file becomes around 64 B and can't be opened. I'm not doing…
Paramone
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DKIM in .NET MailMessage and AlternativeViews

I am using DKIM.NET (https://github.com/dmcgiv/DKIM.Net) to sign a MailMessage before sending it to a recipient. The problem i am facing is that the component above signs MailMessage's Body (mailMessage.Body) while I am inserting content as both…
Yannis
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Signing emails with DKIM in Node.js

I'm writing a Nodejs app that needs to be able to send email. So far, I've used Postfix in conjunction with a Nodejs module called Nodemailer to send my email through Amazon SES. Postfix has been handling the DKIM signing, but now I wish to get rid…
Ryan
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DMARC/SPF/DKIM not authenticating with third-party mail

We recently implemented a DMARC record for our domain: "v=DMARC1; p=quarantine; pct=100; rua=mailto:me@mydomain.com" (quarantine 100% of non-authenticated emails and send aggregate report to "me") We use a third-party vendor to issue invites. The…
AWaddington
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DMARC -spf and DKIM record queries

I have a scenario with 3rd party vendors… Our company has a lot of 3rd party mail services. I have set up the dmarc with p – none and SPF records were updated with known sending servers. Could you please clarify a statement which I read in…
Lava
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Multiple DKIM and SPF DNS records

We uses both Mailgun and Google App engine mail services to send transaction emails from our products. Both needs DKIM and SPF text record in the DNS server. Is it possible to set multiple DKIM and SPF record in DNS configuration? Will it work?
Fizer Khan
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Remove "via" from SES emails in Gmail

When sending emails from Amazon SES, gmail shows "sent via amazonses.com". How do I remove this? According to Google, I'm a sender and I don't want my recipients to see the "via" link. What can I do? Gmail checks whether emails are correctly…
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