Ops & Chief of Staff
Silent email failures caught before customers notice
ZeroTwo monitors SendGrid and Resend continuously, catches DKIM and SPF failures within hours, identifies the DNS change that caused them, and maps failed deliveries to ARR and renewal stage in Salesforce.
What changes
Failure detection time
Days or weeks, often after customer complaints
DKIM and delivery drops flagged within hours
Revenue impact visibility
No connection between failed emails and account value
Failed deliveries mapped to ARR and renewal stage in Salesforce
Root cause identification
Support team investigates one ticket at a time
DNS changes, SPF failures, and domain issues identified and linked
Monitoring cadence
Manual dashboard check once a month
Continuous monitoring with immediate escalation for critical drops
Nobody notices broken email until a customer complains
Password reset emails bounce. Invoice emails hit spam. Onboarding sequences break. Nobody notices until a customer complains or churns. The engineering team checks SendGrid dashboards once a month.
A DNS change last Tuesday broke DKIM for the Resend domain. Every transactional email sent since then landed in spam. The support team got 14 tickets saying 'I never got my password reset.' But nobody connected the dots to the DNS change until Friday. Three days of broken email delivery, including 42 invoice emails to enterprise accounts.
How ZeroTwo monitors transactional email health
Checks SendGrid delivery rate, bounces, and spam complaints
SendGridDelivery rate: 97.2% (down from 99.1% last week). Bounce rate on invoicing domain: 3.8% (threshold: 2%). 14 emails to @company.com addresses hard-bounced. Spam complaint rate: 0.04%.
Checks Resend delivery rate and DKIM validation status
ResendDelivery rate: 91.3% (critical drop from 98.7% baseline). DKIM validation failing since Tuesday 3:14 PM. 847 emails landed in spam over 3 days. Affected types: password resets (312), onboarding (289), invoices (246).
Maps failed deliveries to account value and renewal stage
Salesforce42 invoice emails failed to enterprise accounts totaling $2.1M ARR. 3 accounts with open renewal conversations in the next 30 days did not receive their usage reports.
Flags critical issues, links root causes, and escalates revenue impact
Google2 critical issues: DKIM failure on Resend domain and SendGrid bounce spike on @company.com. 3 renewal-stage accounts missing usage reports escalated to CS. Deliverability dashboard updated with 7-day trends.
Get started in under 10 minutes
Connect your tools
One-click OAuth for each integration. No API keys, no engineering.
Describe what you need
“Monitor SendGrid and Resend delivery rates continuously. Flag any delivery rate drop below 98%, any DKIM or SPF validation failure, and any bounce rate above 2%. Map failed deliveries to Salesforce account value and renewal stage. Escalate any revenue-impacting failures immediately.”
It runs on schedule
Continuous monitoring with immediate alerts. Weekly summary posted every Monday.
Frequently asked questions
Yes. ZeroTwo supports SendGrid, Resend, Mailgun, Postmark, and Amazon SES. You can monitor multiple providers simultaneously.
ZeroTwo checks authentication status on every monitoring cycle. A DKIM failure is typically flagged within 1-2 hours of the DNS change.
No. ZeroTwo identifies the issue, links to the specific DNS record that changed, and provides the corrective action.
Default thresholds: delivery rate below 98%, bounce rate above 2%, DKIM/SPF validation failure, or spam complaint rate above 0.1%.
This use case focuses on transactional email (password resets, invoices, onboarding). Marketing email monitoring is a separate configuration.
Related workflows
- Data & AnalyticsData Quality Monitor
- Ops & Chief of StaffIncident Response Brief
- Customer SuccessRenewal Risk Radar
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