Who this is for
An AE wants a repeatable discipline that turns an open Outsolvi grades most likely human into a well-timed second touch, and a way to check whether it lifts reply rate, without adding cognitive overhead.
Outsolvi grades every open and counts only two kinds: verified, meaning the person replied on the thread, and most likely human. Before anyone replies, a most likely human open is the strongest sign Outsolvi gives you that a person is reading, and each one comes with a plain-English reason such as "opened in Gmail". The structural question is how to act on it. The 90-minute second touch is one way to turn that signal into a reply.
The pattern is simple: when a counted open comes in, the rep has 90 minutes to send a tailored follow-up referencing the original email's specific ask, while it is still on the buyer's mind. Opens Outsolvi doesn't count, such as an Apple Mail fetch, a security scan or a look at your own Sent folder, never start the clock.
A real open goes stale fast. The rep is in another meeting, on another call, working another deal. By the time the rep gets to inbox triage, the prospect has moved on and the signal has expired. The opposite failure is just as common: the rep chases an open that was really a security scanner or an Apple Mail fetch, and sends a "just following up" note to someone who never looked.
If you send from Gmail in Chrome with the Outsolvi extension, or from classic Outlook for Windows with the desktop add-in, a counted open pops up as an "Email Opened" notification on your computer. Everyone, including senders on Outlook on the web and new Outlook, can check the tracked emails list in the web app. There's no phone alert, so the window runs during the hours you're at your desk.
Open the email's page in Outsolvi and check the reason on the open. "Opened in Gmail" or "opened in Outlook desktop" is most likely a person. "Microsoft Defender security scan", "reached an Apple Mail inbox" or "could be your own Sent folder" is not, and isn't counted. Once a counted open is confirmed, the rep has 90 minutes to send the second touch. That's a working rule, not a measured cliff.
The second touch references the specific ask of the original email: 'One thing I want to flag on the X proposal is Y.' Don't mention that you saw the open; it tips the buyer off to the tracking and costs trust. Templates do not work here.
Keep the second touch under 80 words, with one ask: book the call, answer the question, or confirm the next step. A short note is easy to answer from a phone between meetings.
Measure reply rate on second-touch sends and compare it to your baseline. Give it enough sends to judge; a handful proves nothing either way.
Outsolvi grades every open as a person or a machine and shows the reason, and only verified and most likely human opens are counted. Apple Mail Privacy Protection fetches, security scans, link previews and your own opens are recorded and labelled but never counted, so they don't start the clock or raise a pop-up. Gmail's image proxy fetches images when the message is opened, so a Gmail open is usually real and is counted; repeat fetches within ten minutes are grouped into one open, and if you send from Gmail, a fetch in the first five minutes after sending is labelled "could be your own Sent folder" and isn't counted. If you miss the window, the Needs a nudge filter in the tracked emails list shows emails sent more than three days ago that were opened, got no reply and have no follow-up scheduled.
Second touch reinforces the discovery question or proposes a 15-minute slot.
Second touch addresses the specific concern the prospect is likely re-reading the deck for (pricing, technical fit, security).
A counted re-open of the pricing or contract email is the signal to call, not email. The 90-minute window applies to the call too.
If the counted open came in overnight or during a long meeting, don't send a rushed note late. Send the second touch early in the recipient's next working morning instead.
It's a working rule, not a measured optimum. There is no published study of follow-up timing after an open, so treat 90 minutes as a discipline that stops good signals going stale, and check your own reply rates to see whether a different window suits your buyers better.
Yes. A counted open on your reply to an inbound lead is an even stronger cue, because they came to you first. The 90-minute discipline applies even more strongly to inbound.
Because Outsolvi graded it as a machine, as your own open, or as only possibly human, and the reason on the open says which. "Reached an Apple Mail inbox" means Apple fetched the images on delivery, "Microsoft Defender security scan" means a scanner opened it, and "could be your own Sent folder" means you probably viewed it yourself in Gmail. An open graded possibly human still shows its reason but isn't counted either, because it could have been a person or a machine. With Apple Mail, a click or a reply from that person still counts.
That doesn't prove nobody read it. Outlook often blocks images from unknown senders, and some company gateways strip them, so opens are a floor, not a full count. For emails with no reply after a few days, schedule a follow-up with the "no reply yet" condition; Write with AI in the Schedule follow-up panel can draft it in a Friendly, Direct, Soft or Breakup tone for you to edit.
Free tools, articles, glossary entries, and features that pair with this pattern.
14-day free trial, no credit card. Graded opens, hot-lead alerts, reply labels, Outlook and Gmail add-ins.
Start 14-Day Free TrialNate built Outsolvi after watching every email-tracking tool he had ever used lie to him about opens. Outsolvi grades every open as a person or a machine, in Outlook and Gmail, so the number on the dashboard is one a rep can actually act on.
We update these pages when the underlying mechanics change. new mailbox-provider rules, new tracker behavior, new measurement gaps. The dates above are real revisions, not auto-touches.