
ApproveThis manages your MailerSend Integration approvals.
April 17, 2025
Integration Category: Transactional Email
When Approvals Meet Transactional Emails
Let’s cut to the chase: approvals suck when they’re manual. Email systems suck when they’re disconnected from your actual workflows. Combine ApproveThis’ approval automation with MailerSend’s email/SMS engine through Zapier, and suddenly you’ve got a system where critical decisions happen faster and communication stays tight – without the chaos. We’re talking about turning "Did they approve that?" into "It’s already handled," and "Did the email go out?" into "Here’s the confirmation."
Why This Integration Isn’t Just Another Tech Stack Addition
ApproveThis handles the "who said yes" part. MailerSend handles the "tell everyone what happened" part. Together via Zapier, they remove three big headaches for companies scaling between 50-5k employees:
1. No More Approval Black Holes
Marketing needs to send a campaign update? Legal must review a contract notification? With this integration, every email sent through MailerSend can trigger an approval workflow in ApproveThis before it goes out. No more rogue emails – just tracked, auditable decisions.
2. External Approvers Without the License Headache
Here’s the kicker: your client’s legal team can approve/complain about email content directly through ApproveThis without needing access to MailerSend. Same goes for contractors or cross-department reviewers. They get email approvals (or SMS alerts), click a button, and you keep control over who actually touches your email systems.
3. Fix Failed Communications Automatically
SMS delivery fails? The integration auto-creates an approval request to either resend, switch channels, or escalate. No more waiting for someone to notice a problem – build your contingency plans right into the workflow.
Real-World Use Cases That Don’t Sound Like BS
These aren’t hypotheticals. Here’s how actual teams use the combo:
Use Case 1: Quality Control for High-Stakes Emails
Problem: An e-commerce company sends 10k+ order confirmation emails daily. One typo in the discount code field costs them $20k in an hour.
Fix: - Zapier triggers an ApproveThis workflow whenever MailerSend sends emails tagged as "promotional" - Approval rules auto-approve routine emails but flag any with discount codes over 15% for manager review - Approvers get email/SMS alerts with the email content and a one-click approve/reject - Only approved emails proceed; rejected ones trigger a Slack alert to marketing
ApproveThis features used: Approval thresholds, email-based approvals, real-time tracking
Use Case 2: Legal Compliance Made Less Painful
Problem: A healthcare SaaS needs lawyers to approve all data breach notification emails but hates email threads.
Fix: - MailerSend detects an email template tagged "compliance" is queued - ApproveThis creates a parallel approval chain with conditional routing: - First legal, then PR if approved - Auto-escalates after 2hrs with no response - Once approved, MailerSend sends the email and archives the decision trail
ApproveThis features used: Sequential approval groups, vacation delegation, audit trails
Use Case 3: Fixing SMS Failures Before Customers Notice
Problem: A logistics company’s delivery SMS fails, drivers show up to angry customers.
Fix: - MailerSend detects an SMS failure - ApproveThis auto-generates a request with options: "Resend via SMS", "Switch to email", "Call customer" - Warehouse managers approve via mobile in <60 seconds - Chosen action executes without leaving the platform
ApproveThis features used: Approval groups (region-based managers), mobile-first approvals
Setting This Up Without Losing Your Mind
If you’ve used Zapier before, this is a 15-minute setup:
- Connect the Apps: In Zapier, link your ApproveThis and MailerSend accounts
- Pick Your Trigger: Choose MailerSend events like "Email Sent", "SMS Failed", etc.
- Build Approval Logic: Map MailerSend data to ApproveThis fields (e.g., email content → approval reason)
- Set Up Actions: Define what happens post-approval – update CRM, send email, log it, etc.
Pro tip: Use ApproveThis’ Calculated Fields to auto-flag emails needing review. Example: If MailerSend email contains “$” and “refund”, calculate a risk score and route to finance.
Which Teams Actually Care About This?
Customer Support: Auto-approve routine replies but escalate angry client emails to managers.
Procurement: Require PO approvals via email before sending vendor confirmations through MailerSend.
IT: Get SMS alerts for system outage notifications stuck in approval limbo.
The Bottom Line
ApproveThis + MailerSend via Zapier isn’t about doing new things – it’s about doing necessary things faster and with fewer errors. For companies past the startup phase but not yet enterprise, it’s the difference between processes that slow you down and processes that actually keep pace.
Get Started (Without the Sales Pitch)
If you’ve got MailerSend and approval bottlenecks, the simplest next step is to grab an ApproveThis trial, connect via Zapier, and automate one approval flow this week. No “strategy session” needed – just pick a problem and fix it.
Integrate with MailerSend Integration and get 90 days of ApproveThis for free.
After you create a Zapier integration, please email us at support@approve-this.com with your account name and we'll add 3 months of ApproveThis to your account. Limit one redemption per account.
Learn More
Best Approval Workflows for MailerSend
Suggested workflows (and their Zapier components) for MailerSend
Create approval requests for emails sent with MailerSend
Manage your email deliverability quality by automatically reviewing each sent email through MailerSend. This integration creates an approval request on ApproveThis whenever an email is sent, allowing your team to ensure important emails maintain quality standards. *Note: Make sure your team is set up to manage these requests effectively within ApproveThis.*
Zapier Components

Trigger
Email Is Sent
Triggers when an email is sent.

Action
Create Request
Creates a new request, probably with input from previous steps.
Send template-based emails after approval decisions on ApproveThis
Ensure only approved communications are sent out by setting up a Zap that sends template-based emails through MailerSend whenever a request is approved or denied in ApproveThis. This automation helps maintain control over your outbound email quality and relevance. *Note: Prepare email templates for varying approval outcomes.*
Zapier Components
Trigger
A Request Is Approved/Denied
Triggers when a request is approved or denied.

Action
Send a Template-Based Email
Send an email based on a template via your MailerSend account.
Initiate approval workflow for failed SMS deliveries
Avoid missed SMS communications by triggering an approval request for failed SMS deliveries using MailerSend. Set up a resolution plan swiftly by integrating with ApproveThis to track and evaluate the issue. *Note: Create clear escalation paths for resolving alerts faster.*
Zapier Components

Trigger
SMS Delivery Failed
Triggers when SMS failed to deliver.
Action
Create Request
Creates a new request, probably with input from previous steps.
Send SMS notifications for new approval requests on ApproveThis
Be informed instantly about new approval requests in ApproveThis by sending SMS alerts via MailerSend. This ensures that no approval request goes unnoticed, streamlining your decision-making process through effective communication. *Note: Adjust SMS templates to include crucial details for clarity.*
Zapier Components
Trigger
New Request
Triggers when a new approval request workflow is initiated.

Action
Send an SMS
Send an SMS via your MailerSend account.
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