If you’re dealing with the frustration of seeing scrambled blocks of text instead of readable emails, you’re not alone. This is a common issue, and it usually happens because PGP requires specific keys to lock and unlock messages. Many beginners face this due to missing key imports, wrong email clients, or unfamiliar tools. In this guide, you’ll learn exactly how to encrypt and decrypt emails using PGP in a simple and reliable way.

Quick Answer

The fastest way to encrypt and decrypt emails is to use a PGP-compatible tool like Mailvelope or Thunderbird with your imported keys. In most cases, this works immediately if you follow the correct steps below and rely on updated, trusted sources instead of outdated links.

What is Encrypting and Decrypting Emails with PGP?

Encrypting and decrypting emails with PGP means turning your readable text into a secure code that only the recipient can open.

Keep it neutral and simple. Avoid hype or risky wording. Focus on:

  • What it is: The process of scrambling an email message so it looks like random characters to anyone intercepting it.
  • How it works: You use the recipient's public key to encrypt (lock) the email. They use their private key to decrypt (unlock) it.
  • Why people use it: To stop hackers, email providers, and governments from reading private communications.

Why This Happens

Why Sending Encrypted Emails Feels Difficult

This usually happens because standard email providers like Gmail or Yahoo do not have native PGP support built into their web interfaces. Factors like missing public keys, confusing software terminology (such as understanding the difference between PGP and GPG), or incorrect text formatting can also cause issues. These privacy systems change frequently, which makes them harder to maintain than regular websites. Once you understand this, it becomes much easier to fix and prevent.

How to Fix This Problem (Step-by-Step)

Step 1: Import Your Contact's Public Key

Start by getting the recipient's public key. Open your PGP tool and import the key into your keyring. Make sure your setup is updated and properly configured before continuing. If you haven't made your own keys yet, you can follow a guide on how to create a PGP key first.

Step 2: Encrypt Your Outgoing Message

Next, compose your email normally. Before hitting send, click the "Encrypt" button in your PGP software. The tool will automatically find your contact's public key and scramble the text. This helps remove common connection or access issues later.

Step 3: Decrypt Incoming Messages

Then, when you receive an encrypted email (a block of random text), select the text and click "Decrypt" in your PGP tool. You will be prompted to enter your private key passphrase. Always download encryption software from official websites to ensure authenticity and security.

Make sure you follow each step carefully, as skipping one can keep the issue unresolved.

PGP/MIME vs. Inline PGP: Key Differences

When you encrypt an email, your software will format the scrambled data using one of two methods. Understanding the difference between these formats helps prevent decryption errors for both you and your recipients.

PGP/MIME is the modern standard. It wraps the entire email—including the subject line, HTML formatting, and attachments—into a secure, encrypted package that appears as an attachment (often named "encrypted.asc") to the receiver.

Inline PGP is an older method. It takes only the raw text of the email, encrypts it, and pastes that block of random characters directly into the body of the email. While simpler, it breaks HTML formatting and does not support file attachments.

FeaturePGP/MIMEInline PGP
AttachmentsFully supportedNot supported
HTML FormattingPreservedStripped/Broken
Where it appearsAs a file attachmentInside the email body
CompatibilityBest for modern clientsBest for older, text-only clients
RecommendedYesNo

Common Problems and Fixes

Problem 1: "No valid OpenPGP data found" error Fix: This usually means the sender did not encrypt the message correctly, or they used an email address that does not match the public key you have for them. Ask them to double-check your exact email address on file.

Problem 2: Broken text formatting (Inline PGP issues) Fix: If the encrypted message looks messy or fails to decrypt, the sender might be using outdated Inline PGP. Ask them to switch their software settings to PGP/MIME for better compatibility.

Problem 3: Wrong passphrase error when decrypting Fix: Carefully retype your private key passphrase, checking for accidental caps lock or typos. If you truly forgot it, you will not be able to read the message, which is why backing up passphrases safely is so important.

Pro Tips

  • A simple way to improve results is to use dedicated PGP email clients like Thunderbird instead of trying to copy and paste encrypted text manually.
  • Avoid clicking random or sponsored links when looking for PGP plugins, as they can lead to unreliable or unsafe pages.
  • If possible, always rely on updated and trusted sources for better accuracy and results. If you need help with the initial setup, reading a full walkthrough on how to set up PGP for email can save you time.

Safety / Best Practices

Be careful when interacting with unknown sites or downloading files. It’s always better to follow safe browsing practices and avoid sharing personal information. Stick to well-known resources and keep your setup secure to reduce risks. Never share your private key file or your passphrase with anyone, not even to verify your identity.

  • How PGP Encryption Works
  • Public Key vs Private Key Explained
  • What Is OpenPGP?
  • Best PGP Software for Beginners
  • PGP Key Servers Explained

FAQs

Q1: Can I send an encrypted email to someone who doesn't use PGP? Yes, this can happen when you use a service like Proton Mail that generates a password-protected link. The best way to fix it is to share the link and password through a separate messaging app.

Q2: Does encrypting an email hide who I am? In most cases, no. PGP hides the contents of the email, but your name, email address, and the recipient's address are still visible in plain text.

Q3: Why does my encrypted email show up as an attachment? This depends on the software you use, but generally your PGP tool is using the PGP/MIME standard, which bundles the encrypted message into a file attachment for better formatting.

Q4: Can I encrypt file attachments using PGP? Yes, this can happen easily if you use the PGP/MIME format. The software will encrypt the text and the files together into one secure package before sending.

Q5: What happens if the sender encrypts the email to the wrong key? This depends on the exact key they selected, but generally you will see an error message saying you do not have the matching private key to decrypt it. They will need to re-encrypt it using your correct public key.

Q6: Do I need to be connected to the internet to decrypt an email? No, you do not. As long as the encrypted message is downloaded to your device and you have your private key stored locally, you can decrypt it offline.

Conclusion

In most cases, the struggle to read and send secure emails can be fixed by properly importing keys and using a dedicated PGP tool. Understanding how these tools work and using updated resources makes a big difference. Follow the steps above, and you should be able to resolve the issue without complications.