Side by side
GlockApps vs Sendmarc
Both stand on email deliverability software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan APIWeb
GlockApps covers inbox placement, sender reputation, authentication, and uptime monitoring, with API access even on its free plan. Review the plan limits and the email data collected for testing before choosing it.
Visit GlockApps
Free plan APIExtensionWeb
Sendmarc combines authentication management, reporting, reputation checks, and domain-threat alerts in one service. Its quote-based paid plans and limited trial scope should be considered before adoption.
Visit SendmarcThe facts
| GlockApps | Sendmarc | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | No |
| Runs on | API, Web | API, Extension, Web |
| Lowest paid plan | Essential: $59 a month | Free or on request |
| Plans published | 4 | 4 |
| Maker | Not published | Not published |
| Website | glockapps.com | sendmarc.com |
| On email deliverability software | #6 of 31 | #10 of 31 |
GlockApps: what it does well
- Inbox Insight reports inbox, spam, and subfolder placement.
- Checks include several named spam filters.
- The API is available on all plans, including free.
- Uptime checks can run as often as every minute.
- DMARC reports are stored for a year.
What to know first
- The free plan includes two spam test credits.
- The free plan has five uptime monitors.
- Paid plans start at $59 a month.
- Inbox Insight collects message content and headers for testing.
Sendmarc: what it does well
- Manages DMARC, SPF, DKIM, BIMI, MTA-STS, and TLS-RPT
- Collects reports on senders and authentication results
- Alerts on lookalike domains and detected breaches
- Provides API access and SIEM integration
- Offers a free trial for one domain
What to know first
- No free plan
- Paid pricing requires a quote
- Trial limits data history to 21 days
- Only web and API platforms are listed
Alternatives to GlockApps Alternatives to Sendmarc The whole list