An outreach tool can put ‘InMail’ on a feature list without telling you where the message is sent, which account spends the credit, or whether a person reviews each send. Those details decide whether the feature fits your workflow.
First, identify the message type
InMail is a paid LinkedIn message to someone you are not connected with. It is different from a connection request note and from a message to a first-degree connection. A product demo that sends a connection note has not demonstrated InMail support, even if both actions appear in the same sequence builder.
LinkedIn says Sales Navigator InMail is written and sent from Sales Navigator. Its Help page also says bulk messaging is unavailable and InMails must be sent individually to each recipient. Ask a vendor to show an actual InMail arriving from the intended Sales Navigator account, not just an action named ‘InMail’ in a campaign editor.
Sources: InMail messages in Sales Navigator
The credit belongs to the sender, not the tool
Sales Navigator provides a limited InMail credit allocation. LinkedIn says unused credits can carry into the following month for a limited period, and a credit is returned when the recipient replies within 90 days. A second InMail to the same person before a reply uses another credit. Those rules make ‘unlimited InMail’ a claim to question: software cannot turn a limited LinkedIn entitlement into an unlimited one.
Before buying, open the sender's own Sales Navigator account and record the available credit balance. Send one approved test InMail, then compare the balance and sent item with the tool's activity log. Repeat the test with a second sender if the campaign rotates accounts. If the vendor cannot explain which account spends each credit, the campaign cost and audit trail are unclear.
Ask what the software actually does
‘InMail support’ can mean drafting copy, reminding a rep to send in Sales Navigator, importing a sent result, or attempting to perform the send. These are different workflows. A useful demo begins with a named lead and ends with the sent item in the sender's native Sales Navigator inbox. The vendor should show what happens when the lead cannot receive InMail, the sender has no credit, or a rep cancels the action.
LinkedIn says a member can turn off InMail reception, in which case the send option is unavailable. The tool should expose that stop condition rather than report a queued action as delivered. Ask for separate states for drafted, awaiting review, attempted, sent, failed, and replied. A single ‘completed’ label hides the failure that matters.
Sources: InMail messages in Sales Navigator
Account risk is part of the buying decision
LinkedIn's automated-activity guidance says it does not allow third-party software or browser extensions that scrape, modify the appearance of, or automate activity on its website. A vendor's promise that an automated send is safe or approved does not change that policy. Ask how each action is performed and documented; do not infer platform permission from a vendor's feature page or from a successful test send.
If your team only needs a better drafting and review process, keep the final send in the native Sales Navigator interface. If you are evaluating software that performs the send, have the account owner review LinkedIn's current policy and the exact mechanism first. Stop the trial if the vendor cannot show the mechanism or wants you to treat a simulated ‘human-like’ delay as evidence of permission.
Sources: Automated activity on LinkedIn
An acceptance test you can run
Use one permitted recipient and one sender account. Write down the message type, starting credit balance, recipient eligibility, approval step, native sent-item location, and expected reply destination. Then run the demo and compare each observed state with the vendor's log. Keep a screenshot or export of the result for your own evaluation; a feature checkbox is not a substitute for the observed path.
Pass the tool only for the workflow it actually demonstrates. A drafting aid may be useful even when it cannot send InMail. A connection-message tool may suit a different campaign. If InMail is essential, require a clear answer about the send path, credit accounting, failure handling, and LinkedIn policy before signing a contract.