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Use cases

If the state lives in a column, Mailvern can email it

Every workflow below is one sheet, one condition and one campaign — no exports, no separate CRM.

Invoice reminders

Finance teams

The problem
Chasing unpaid invoices means filtering a sheet, copying addresses and writing the same email again.
With Mailvern
Keep invoices in a sheet and let Mailvern email only unpaid rows with the amount, invoice number and due date filled in.

Invoice = Unpaid

Payment follow-ups

Operations

The problem
Pending payments slip through when reminders depend on someone remembering to send them.
With Mailvern
Auto Run re-checks the sheet daily and follows up on rows that are still pending — once each.

Payment = Pending

Lead nurturing

Sales teams

The problem
Hot leads and cold leads get the same generic blast, so nobody replies.
With Mailvern
Score your leads in the sheet and send tailored emails to each band with the right message.

Score > 80

Student notifications

Schools & colleges

The problem
Fee notices, results and schedules go out class by class, manually.
With Mailvern
One sheet, one campaign: notify only the students in a given batch, section or status.

Batch = 2026

Recruitment

Recruiters & HR

The problem
Candidate updates stall because status changes live in a tracker nobody emails from.
With Mailvern
Send interview invites to approved candidates and polite rejections to the rest — from the same sheet.

Status = Shortlisted

Customer onboarding

Success teams

The problem
New signups wait days for setup instructions.
With Mailvern
Every new row marked Onboarding gets a personalized welcome sequence within the hour.

Stage = Onboarding

Internal communication

People teams

The problem
Announcements to a subset of staff mean building a new group every time.
With Mailvern
Filter your employee sheet by team, office or role and email exactly that slice.

Office = Delhi

Marketing campaigns

Marketing teams

The problem
Bulk tools require exporting your list into another platform.
With Mailvern
Segment inside Sheets and send from Gmail with tracking — no list upload, no third-party copy.

Segment = Active

Certificates

Coaching institutes

The problem
Certificate links are generated in bulk but delivered one by one.
With Mailvern
Email each completed participant their own certificate link straight from the results sheet.

Completion = Yes

Attendance alerts

Schools & HR

The problem
Low-attendance warnings arrive too late to help anyone.
With Mailvern
Email guardians or managers only when attendance drops under your threshold.

Attendance < 75

Renewals

Subscription businesses

The problem
Renewal notices go out late, and churn follows.
With Mailvern
Schedule renewal reminders for rows expiring this month, with plan and price personalized.

Renewal = This month

Appointment reminders

Clinics & services

The problem
No-shows cost more than the reminder ever would.
With Mailvern
Auto Run sends a reminder the day before each confirmed appointment in the sheet.

Appointment = Tomorrow

Pattern library

The three campaign shapes you'll use most

Almost every Mailvern campaign is a variation of one of these.

One-time send

A single condition, sent once. Perfect for announcements to a filtered segment.

Batch = 2026 → schedule notice

Recurring chase

Auto Run re-checks the sheet daily and emails newly matching rows, once each.

Payment = Pending → daily reminder

Branching outcome

Two campaigns on the same sheet, one per outcome, so every row gets the right message.

Status = Shortlisted / Rejected

Google Workspace Marketplace

Find your workflow above? Build it today.

Install Mailvern, open the sheet you already use, and turn a column into a campaign.

3-day trial on paid plans · Works with Gmail and Google Workspace