Instantly / Smartlead template
Bounce recovery: sort a bounce export, suppress the bad, re-verify the rest
After a bounce spike, sort the bounce messages with the free Bounce Doctor, add the dead addresses to your sender's block list, and re-verify everyone else in the campaign before you send again.
About 20 minutes to set upCold email senders whose bounce rate went up and who need to know what to remove and what to fix.
How it runs
- 1
Pause
Pause the campaign so no more mail goes to a bad list.
- 2
Sort
Paste the bounces into Bounce Doctor. It sorts addresses into remove, retry, sender problem and unclear.
- 3
Suppress
Add the remove group to your sender's block list.
- 4
Re-verify
Verify every remaining lead in the campaign.
- 5
Resume small
Restart with action = send leads only, at a lower daily volume.
What you need
- An Instantly or Smartlead campaign with bounces
- The bounce messages or a bounce export from that campaign
- A SimpleVerifier account (free checks cover a first pilot; the native campaign check needs a connected key)
Set it up
- Pause the campaign in Instantly or Smartlead.
- Open the Bounce Doctor, paste your bounce messages or a bounce export and read the four groups. The tool runs in your browser, and nothing you paste is uploaded.
- Copy the remove group and add it to your sender's block list or global block list so these addresses cannot be mailed again from any campaign.
- Re-verify the rest. Either connect the campaign on the Integrations page in your account and verify it there, or export the campaign's leads as a CSV and upload it on the verify page.
- Look at the sender group. Codes that start with 5.7 are about your domain, IP or content, so check SPF, DKIM and DMARC before you blame the list.
- Restart with the leads marked send, at a lower daily volume, and watch the bounce rate for a few days.
Pause the campaign
Bounce Doctor: paste bounces, read the four groups
Remove group: add to the sender's block list
Sender group (5.7.x): check SPF, DKIM, DMARC first
Re-verify the rest of the campaign
Restart with action = send only, lower daily volumeWhere your judgment still matters
Bounces are not always the list's fault. A block caused by your own authentication or reputation will not be fixed by verifying addresses. Read the sender group first. Pause risky leads rather than deleting them, until you know why they failed.
Start with your own key
Every template calls the SimpleVerifier API with your key. Create one, then run the template on a handful of rows. To check a whole list without any setup, upload it as a CSV.
Common questions
- Does Bounce Doctor upload my bounces?
- No. It runs in your browser and nothing you paste leaves the page.
- Can SimpleVerifier verify the campaign directly?
- Yes, for Instantly and Smartlead you connect your key and pick a campaign. Tagging is the default and removal or blocking is opt-in. The CSV route works for any other sender.
- Will re-verifying fix my deliverability?
- It removes addresses that will bounce. It does not fix authentication, sending volume or content, which are the other common causes.
Related: Bounce Doctor · Instantly integration · Smartlead integration
All workflow templates · By SimpleVerifier Team