MailShield: Fake Email Blocker vs SpamShield
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 21, 2026 for MailShield, Nov 2, 2026 for SpamShield.
The short answer
- Both list a free plan. Paid plans start at $9.99/month for MailShield and $4.99/month for SpamShield.
- MailShield lists 5 features SpamShield’s listing doesn’t mention, including Chargebacks, Fake accounts, High-risk alerts.
Head to head
Free
- · 1 custom blocked domain
- · Blocks common disposable domains
- · Catches typos like gmial.com
- · Up to 100 orders a month
- · Works on every Shopify plan
Pro
- · Email, webhook and Flow alerts
- · Every order tagged and scored
- · Filter or automate on the tags
- · No order limit
- · Scans orders vs 120,000+ domains
- · Up to 50 custom blocked domains
Advanced
- · DNS/MX scan, catches dead domains
- · Everything in Pro
- · Full risk log and dashboard
- · Unlimited custom blocked domains
Free
- · 2,500 spam checks per month
- · 7-day message retention
- · Contact, newsletter, and blog forms
- · Decision reasons and spam signals
Starter
- · 10,000 spam checks per month
- · 30-day message retention
- · AI checks using your own AI key
- · Webhook notifications
Pro
- · 50,000 spam checks per month
- · 90-day message retention
- · AI checks using your own AI key
- · CSV export for message reviews
- · Public API and webhook notifications
Enterprise
- · 365-day message retention
- · AI checks using your own AI key
- · CSV export and custom integrations
- · Public API and webhook notifications
- · Unlimited spam checks
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureMost bad checkout emails are not fraud, they are mistakes. A shopper mistypes their address, the order goes through, and the confirmation and tracking never arrive. MailShield catches the typo at checkout and suggests the right domain so they can fix it. It also refuses disposable and temp-mail domains, plus any domain on your own blocklist, before the order is created.
SpamShield filters unwanted submissions before they reach your inbox. It checks sender reputation, content patterns, bot behaviour, and optional AI signals, then explains each decision. Enable the app embed in your current theme to protect supported storefront forms. Review blocked and quarantined messages, tune sensitivity and custom rules, run safe tests in Shopify admin, and receive activity summaries.
- Block disposable and temporary email domains at checkout
- Catch common email typos and suggest the correct domain
- Enforce your own custom list of blocked email domains
- Auto-tag and add risk notes to suspicious orders after checkout
- AI-powered spam detection blocks bots and fraud without CAPTCHAs, so real custom
- Smart quarantine lets you review flagged messages and release false positives wi
- Detailed analytics dashboard and weekly email digests keep you informed about sp
All the numbers
Every figure, side by side
A green dot marks the app ahead on a measured figure. Estimates, gaps and apps that leave no storefront trace never take the lead.
Adoption
| Measure |  MailShield |  SpamShield |
|---|---|---|
| Detected stores | Not published | Not published |
| Net store change, 28 days | 0 | 0 |
| Stores added, 28 days | Not enough data | Not enough data |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Not published | Not published |
| Top store countries | Not published | Not published |
Reviews
| Measure | MailShield | SpamShield |
|---|---|---|
| App Store rating | Not published | Not published |
| App Store reviews | Not published | Not published |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | MailShield | SpamShield |
|---|---|---|
| Free plan | Yes | Yes |
| Lowest paid monthly plan | $9.99/month | $4.99/month(ahead) |
| Longest free trial | 7 days | 14 days |
| Plans listed | 3 | 4 |
Listing
| Measure | MailShield | SpamShield |
|---|---|---|
| Shopify category rank | #62 | #27 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | May 24, 2026 | May 7, 2026 |
| Languages | 1 | 1 |
| Developer | Stackedboost | JMS Dev Lab |
FAQ
MailShield and SpamShield: common questions
- Is MailShield or SpamShield cheaper?
- Both list a free plan. Paid plans start at $9.99/month for MailShield and $4.99/month for SpamShield. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- What features does each app list that the other doesn’t?
- MailShield lists 5 the others don’t mention, such as Chargebacks, Fake accounts, High-risk alerts, Order validation. A feature missing from a listing may still be supported; this compares what each App Store listing says.
- Where does this comparison’s data come from?
- Shoplist crawls Shopify storefronts to detect which apps each store runs, and reads each app’s Shopify App Store listing for reviews, pricing, features and integrations. Store counts are as of Oct 21, 2026 for MailShield, Nov 2, 2026 for SpamShield; estimated figures are labeled.
How Shoplist compares apps
Store counts come from Shoplist’s crawl of Shopify storefronts, which detects the apps each store runs; they are as of Oct 21, 2026 for MailShield, Nov 2, 2026 for SpamShield. Reviews, ratings, plans, features and integrations come from each app’s Shopify App Store listing. 28-day figures are labeled when estimated, and a figure that is missing or estimated never decides who leads. Read the methodology.