ChatGPT & Claude (MCP)
How to Fix Your Email Signature in ChatGPT and Claude
If you use Claude or ChatGPT to write and send email, the signature comes out wrong. Raw URLs get pasted in as plain text, links get dropped, or the model signs off with a bare name and calls it done. The model does not know what your signature is supposed to look like, so it guesses, and it guesses differently every time you ask. The fix takes about thirty seconds. Create an account at usecarly.com and connect the email accounts you want to send from, then write your signature once in the signature tab. Hyperlink the words rather than pasting long URLs, so Website, LinkedIn and Book a call are links instead of a wall of text. From then on every email drafted through the Carly MCP server uses that exact signature, links intact, with nothing to clean up after the fact and no reminding the model about your links in every prompt.
Step by step
- 01
Understand why AI drafts get the signature wrong
The model has no copy of your signature, so it invents one. That is why the links vary, the URLs come through raw, and the sign-off changes from draft to draft.
- 02
Connect the accounts you send from
Create an account at usecarly.com and connect the email accounts you want to send from. You can connect more than one, and each keeps its own settings.
- 03
Write your signature once in the signature tab
Enter the signature you actually use. This is the version the assistant will attach, so put in the real title, links and sign-off rather than a placeholder.
- 04
Hyperlink the words instead of pasting URLs
Link words like Website, LinkedIn and Book a call rather than pasting long raw URLs. This is the part AI drafts get wrong most often, and setting it once fixes it everywhere.
- 05
Draft through the Carly MCP
Ask Claude or ChatGPT to write the email as usual. Because it drafts through the Carly MCP, the signature comes attached instead of the model signing off with a bare name.
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