With the new version release, users are now able to create InMail campaign using Search URL.
In creating campaign using a Search URL, just simply copy the LinkedIn search URL and paste it to the step 'Add Leads from LinkedIn search URL'.
Please note that when creating InMail campaign, you have to select the option 'Open Link Profiles Only'.
What is Open Profiles?
Open profiles are LinkedIn profiles that are public so anyone can send them InMail messages.
In that way Alfred will only gather Open Profiles in preparation for your InMail campaign.
*Available for LinkedIn Sales Navigator subscribers only