Convert website visitors into subscribers and WordPress users, send one-off newsletters, and create automated, event-triggered follow-up emails.
- Free version
- Yes
- Price
- From $99/year
- Category
- Email marketing
Post SMTP wins 2 of the 2 points we can measure. Here's how they compare on price, features, ratings and deals.
| Feature | MailOptin | Post SMTP |
|---|---|---|
| Our score | 8.5/10 | 8.5/10 |
| Starts at | $99/year | $59.99/year (better) |
| Free version | Yes | Yes |
| Refund window | 14 days | 14 days |
| Billing | Subscription | Subscription |
| Active installs | 10K+ | 300K+ (better) |
| Last Black Friday | – | 25% off |
| Category | Email marketing | Email marketing |
| Vendor | MailOptin | Postmansmtp |
| Black Friday 2026 | Not announced | Not announced |
StandardStarts here
$99/year
1 site sites
Pro
$289/year
3 sites sites
Agency
$499/year
Unlimited sites
BasicStarts here
$59.99/year
Professional
$79.99/year
Business
$99.99/year
On our comparison Post SMTP comes out ahead on 2 of 2 measurable points. The right pick still depends on what you build.
MailOptin starts at $99/year and Post SMTP starts at $59.99/year.
Both are on our Black Friday tracker. Post SMTP was 25% off last year.
Convert website visitors into subscribers and WordPress users, send one-off newsletters, and create automated, event-triggered follow-up emails.
Post SMTP provides advanced email delivery solutions to ensure your emails are delivered effectively from your WordPress site.