Mozilla will shut down Pocket’s services on July 8, 2025. At that time users will no longer be able to access the Pocket website, apps and API. You can export your saved items and API data until October 8, 2025 before they are permanently removed. For more information, see this article.

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

A tag of random letters (PK) is attached at the end of every email I send out. How did it get there and how do I get rid of it?

  • 2 replies
  • 3 have this problem
  • 10 views
  • Last reply by smilaw

Dear ___,

The tag below appears on every email I send out--- "PK" means nothing to me, and I don't know how it got there.


-- PK???

Dear ___, The tag below appears on every email I send out--- "PK" means nothing to me, and I don't know how it got there. -- PK

Chosen solution

My first thought is: have you set up a signature? Thunderbird will add your signature to each outbound message. This is on a form where you might easily type a couple characters inadvertently. More info in this article: Signatures.

Was that it?

Read this answer in context 👍 1

All Replies (2)

Chosen Solution

My first thought is: have you set up a signature? Thunderbird will add your signature to each outbound message. This is on a form where you might easily type a couple characters inadvertently. More info in this article: Signatures.

Was that it?

Wow! That was it. I started by re-doing my email signature. But the Word document I used must have been corrupted. So I just went to my account settings and un-checked the signature box, then started a New Message. No more "PK" tag---whatever that was. Thank you!