Quick answer: LinkedIn messages usually fail to send or show up because of a temporary sync glitch between the app and browser, an outdated app version, or — if you’re messaging someone you’re not connected to — LinkedIn routing it into InMail or a filtered “Other” folder instead of the main inbox. Refreshing, updating the app, and checking the filtered folder fixes it in most cases.
A message that seems to vanish, won’t send, or never shows a reply is rarely a sign the other person is ignoring you — it’s almost always one of a handful of technical or settings-based causes.
Why This Happens
- The app or browser tab is running on a stale session and needs a refresh or restart to re-sync.
- You’re messaging a 2nd or 3rd-degree connection, so LinkedIn routed it as an InMail or connection-request-with-note, which behaves differently from a normal message.
- The recipient has message filtering enabled, which sorts messages from people outside their network into a separate “Other” inbox they rarely check.
- A temporary LinkedIn messaging outage or delay — rare, but it happens during platform-wide incidents.
- The LinkedIn app is outdated and missing a messaging bug fix from a recent release.
How to Fix It, Step by Step
- Refresh the page (web) or fully close and reopen the app (mobile) rather than just switching tabs.
- Check whether the conversation is actually an InMail or pending invite-with-note rather than a standard message — these show a different status and delivery flow.
- Update the LinkedIn app to the latest version from your app store.
- Log out and back in once if messages still won’t send after a refresh.
- If you’re not connected to the recipient, consider sending a connection request with a short note instead — it’s more likely to be seen than a message routed to “Other.”
When It’s Not You — Checking for a Platform-Wide Issue
If messaging is broken for everyone, not just your account, checking a status-tracking site like Downdetector will usually show a spike in reports. In that case, the fix is simply to wait it out.
InMail vs. Regular Messages: Different Rules Apply
If the message you’re sending is an InMail (used to message someone you’re not connected with, typically via Premium or Sales Navigator), it follows different delivery rules than a normal message to a connection. InMail credits are limited per month, and a failed send is sometimes simply a sign you’re out of credits for the period rather than a technical fault. Check your InMail credit balance in your account settings before assuming something is broken.
When It’s a Recipient-Side Restriction, Not a Bug
Some members restrict who can message them directly (for example, connections-only), which can cause a message to fail to send or simply never appear as delivered on your end, with no clear error explaining why. If this only happens with one specific person and works fine with everyone else, it’s more likely to be their messaging preferences than a fault with your account or the app.
Checking Whether the Message Actually Sent, Even If the App Didn’t Confirm It
Before assuming a message failed outright, open the conversation again from the Messaging tab (rather than trusting a stalled loading icon) to see whether it actually appears in the thread. LinkedIn’s interface occasionally fails to show a send confirmation even when the message went through successfully on the server side, so checking the conversation directly is a more reliable test than watching the send button or icon for feedback.
Group Messages Follow Their Own Separate Settings
If the problem is specific to a group conversation rather than one-on-one messages, check that group’s own notification and messaging settings separately, since group threads have their own mute and permission options independent of your overall messaging settings.
None of these fixes require reinstalling the app or resetting your account, so try the simpler checks above before resorting to anything more drastic.
A quick reload of the app after checking these settings is often enough to make everything sync correctly again.
FAQ
Why does my message show “Sent” but the other person says they never got it? This almost always means it landed in their filtered “Other” inbox rather than their main messages — a setting on their account, not an error on yours.
Does blocking someone stop old messages from showing? Yes — blocking a connection hides your prior message history from both accounts, which can look like messages “disappeared.”
Can a slow internet connection cause messages to fail? Yes, an unstable connection is one of the most common causes of a message appearing stuck or failing to send — check our guide on LinkedIn’s “no internet connection” error if that keeps happening.
