A signature that's switched on should actually sign your emails. Now, when a sender has the signature toggle on but nothing real to append, you'll see a clear amber warning instead of a silent gap.
What changed
The per-sender signature toggle defaults to on, which is what most people want. But "on" only does something if there's actually a signature to add. If a sender has no saved signature content — and no usable fallback from their name, title, or email to build a basic one — then nothing gets appended at all, even though the toggle plainly says it's on.
That was a silent gap. The interface showed the signature as enabled, and the accompanying copy promised a basic fallback signature would stand in. In practice that fallback didn't always materialize, so emails could go out completely unsigned while everything on screen insisted a signature was in place.
Now the interface tells you the truth. When the toggle is on but the signature would render empty, you get a clear amber warning in place of that false promise. The warning only appears when there's a real problem — a sender that's set to sign but has nothing to sign with.
How to use it
- Open your senders and look for the amber warning on the signature setting.
- If you see it, that sender will send unsigned even though the toggle is on.
- Fix it by adding saved signature content for that sender — the signature you actually want on the email.
- Or fill in the sender's name, title, and email so a basic signature can be built from them.
- Once there's real content to append, the warning clears and that sender's emails will go out signed.
Why it matters
An unsigned cold email reads as careless, and it's exactly the kind of detail you don't notice until a prospect does. The old behavior made that easy to miss: the toggle said "on," the copy promised a fallback, and you had no reason to suspect anything was wrong — right up until messages went out with no signature at all.
Now you find out before you send, not after. The warning points you straight at the sender that would go out blank, so you can add a signature or complete the profile and fix it in seconds. It's a small detail, but it's the kind that protects how every one of your emails lands — and it spares you the awkward discovery that a whole run went out unsigned while the setting said otherwise.