Automated Mailshake List Hygiene Checks
Every Friday, WebRun opens Mailshake, reads the bounce and failure counts for each running campaign, scans your Gmail sending inbox for auto-replies that reveal people who left or are away, and writes a suppression and recheck list to Airtable, with a note on any campaign whose bounce rate is high enough to be worth pausing.
How do I clean bounced addresses out of my cold email lists?
WebRun opens Mailshake every Friday, reads the bounce and failure counts for each campaign, and lists the addresses that bounced. It scans your Gmail sending inbox for auto-replies, separates leavers from people who are away, and writes a suppression and recheck list to Airtable before your next send.
- Bad addresses are suppressed before the next send goes out
- People who are simply away get retried instead of discarded
- Campaign bounce rates are reviewed every week, not after a domain gets flagged
Built for sales development teams · agencies · founders doing outreach · demand generation
What does WebRun do on every run?
The exact actions WebRun takes, in order - in plain language, so you can adjust anything.
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WebRun signs in and gets to work
Opens
app.mailshake.comin a real browser with your saved login - no setup, no API keys. -
1
Mailshake - read bounces per campaign
mailshake.com
WebRun opens Mailshake to read bounces per campaign. - Open Mailshake and go to your running campaigns
- Read sent, bounced, and failed counts for each campaign this week
- List every recipient address that bounced
- Work out the bounce rate per campaign
- Note which campaigns are above your threshold, but do not pause anything
Done when Every bounced address and every campaign bounce rate is captured.
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2
Gmail - scan auto-replies for leavers
gmail.com
WebRun opens Gmail to scan auto-replies for leavers. - Open the Gmail account your campaigns send from
- Find this week's automatic replies from outreach recipients
- Separate people who have left the company from people who are simply away
- Capture any forwarding contact named in a leaver reply
- Note the return date on each out of office so the prospect can be retried
Done when Every auto-reply is classified as a leaver or a temporary absence.
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3
Airtable - build the suppression list
airtable.com
WebRun opens Airtable to build the suppression list. - Open your list hygiene table in Airtable
- Add every bounced address and every leaver as a suppression row
- Add people who are away as recheck rows with their return date
- Record any forwarding contact so a replacement can be researched
- Add a summary row with each campaign's bounce rate and whether it crossed your threshold
Done when The suppression and recheck lists in Airtable are current.
How is each run configured?
Secure by default
Connect once, stays signed in
WebRun signs in once and keeps each session in a persistent environment, so every run picks up right where it left off.
Every action is checked against this policy before it runs.
Questions, answered
Will it pause a campaign or delete prospects?
No. WebRun reports which campaigns are above your bounce threshold and writes the suppression list to Airtable. Pausing a campaign or removing a prospect in Mailshake stays your decision.
Does it send or reply to any outreach email?
No. It only reads the sending inbox for automatic replies. WebRun never sends, replies to, or forwards a message from your Gmail account.
What happens to people who are just on holiday?
They go on the recheck list with their return date rather than the suppression list, so a good prospect is not thrown away for being out of office for a week.
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