---
title: How to convert a DKIM private key from pfx format to PEM
description: "You can use the following free openssl tool to convert a DKIM private key from pfx format to PEM: http://www.slproweb.com/products/Win32OpenSSL.html [http://www.slproweb.com/products/Win32OpenSSL.html"
---
[Skip to content](https://help.socketlabs.com/docs/how-to-convert-a-dkim-private-key-from-pfx-format-to-pem#main-content)
English
Show submenu for translations
[Contact us](https://help.socketlabs.com/docs/kb-tickets/new?hsLang=en)
[](https://www.socketlabs.com/)
Open main navigation
Close main navigation
- English
Show submenu for translations
- [Contact us](https://help.socketlabs.com/docs/kb-tickets/new)
SocketLabs is here to help!
- There are no suggestions because the search field is empty.
1. [Help Center](https://help.socketlabs.com/docs?hsLang=en)
2. [Hurricane MTA](https://help.socketlabs.com/docs/hurricane-mta?hsLang=en)
3. [Advanced Hurricane Usage](https://help.socketlabs.com/docs/hurricane-mta?hsLang=en#advanced-hurricane-usage)
# How to convert a DKIM private key from pfx format to PEM
You can use the following free openssl tool to convert a DKIM private
key from pfx format to PEM:
[http://www.slproweb.com/products/Win32OpenSSL.html](http://www.slproweb.com/products/Win32OpenSSL.html)
\[http://www.slproweb.com/products/Win32OpenSSL.html\]
Once you have installed the program and opened it, simply issue the
command below.
openssl pkcs12 -in c:certsyourcert.pfx -out c:certsyourcert.pem
-nodes
Next, open the PEM file in a text editor (such as NotePad or
EditPlus) and ignore all but the last certificate section.
-----BEGIN CERTIFICATE-----
and ends
-----END CERTIFICATE-----
You can then copy and paste everything from the begin tag to the end
tag (including the tags themselves) into the private key text box.
- [Fundamentals](https://help.socketlabs.com/docs/fundamentals?hsLang=en#main-content)
- [StreamScore](https://help.socketlabs.com/docs/fundamentals?hsLang=en#streamscore)
- [Reports](https://help.socketlabs.com/docs/fundamentals?hsLang=en#reports)
- [Frequently Asked Questions](https://help.socketlabs.com/docs/fundamentals?hsLang=en#frequently-asked-questions)
- [Advanced](https://help.socketlabs.com/docs/advanced?hsLang=en#main-content)
- [Security](https://help.socketlabs.com/docs/advanced?hsLang=en#security)
- [DNS Authentication](https://help.socketlabs.com/docs/dns-authentication?hsLang=en#main-content)
- [DKIM](https://help.socketlabs.com/docs/dns-authentication?hsLang=en#dkim)
- [SPF and Custom Bounce Domain](https://help.socketlabs.com/docs/dns-authentication?hsLang=en#spf-and-custom-bounce-domain)
- [Deliverability](https://help.socketlabs.com/docs/deliverability?hsLang=en)
- [For Developers](https://help.socketlabs.com/docs/for-developers?hsLang=en#main-content)
- [Event Webhooks](https://help.socketlabs.com/docs/for-developers?hsLang=en#event-webhooks)
- [Integrations](https://help.socketlabs.com/docs/integrations?hsLang=en#main-content)
- [Languages and Frameworks](https://help.socketlabs.com/docs/integrations?hsLang=en#languages-and-frameworks)
- [Mail Servers](https://help.socketlabs.com/docs/integrations?hsLang=en#mail-servers)
- [Web Clients and Plug-ins](https://help.socketlabs.com/docs/integrations?hsLang=en#web-clients-and-plug-ins)
- [Mail Clients](https://help.socketlabs.com/docs/integrations?hsLang=en#mail-clients)
- [Marketing Tools](https://help.socketlabs.com/docs/marketing-tools?hsLang=en#main-content)
- [Tips and Tricks](https://help.socketlabs.com/docs/marketing-tools?hsLang=en#tips-and-tricks)
- [Troubleshooting](https://help.socketlabs.com/docs/troubleshooting?hsLang=en#main-content)
- [SocketLabs Inbound SMTP Gateway Errors](https://help.socketlabs.com/docs/troubleshooting?hsLang=en#socketlabs-inbound-smtp-gateway-errors)
- [SocketLabs Outbound SMTP Errors](https://help.socketlabs.com/docs/troubleshooting?hsLang=en#socketlabs-outbound-smtp-errors)
- [Spotlight Email Analytics](https://help.socketlabs.com/docs/spotlight-email-analytics?hsLang=en)
- [Hurricane MTA](https://help.socketlabs.com/docs/hurricane-mta?hsLang=en#main-content)
- [Advanced Hurricane Usage](https://help.socketlabs.com/docs/hurricane-mta?hsLang=en#advanced-hurricane-usage)
- [Upgrading Hurricane](https://help.socketlabs.com/docs/hurricane-mta?hsLang=en#upgrading-hurricane)
- [Troubleshooting](https://help.socketlabs.com/docs/hurricane-mta?hsLang=en#troubleshooting)
- [Hurricane Maintenance](https://help.socketlabs.com/docs/hurricane-mta?hsLang=en#hurricane-maintenance)
- [Getting Started with Hurricane](https://help.socketlabs.com/docs/hurricane-mta?hsLang=en#getting-started-with-hurricane)
- [Basic Hurricane Usage](https://help.socketlabs.com/docs/hurricane-mta?hsLang=en#basic-hurricane-usage)
- [Complex Sender](https://help.socketlabs.com/docs/complex-sender?hsLang=en)
[](https://www.socketlabs.com)
Copyright © 2026, SocketLabs LLC