documentTHE COMPARISON DESK
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SLA ≠ measured uptime. Prices use different billing units. Read the comparison notes →
| Comparison field | Alibaba Cloud DirectMailCloud providers |
|---|---|
| PricingBilling model | Usage-based or prepaid packagesSource ↗ |
| PricingSelected paid rateSelected plans, not equivalent baskets. USD unless stated; taxes, add-ons and regional terms may differ. | Pay-as-you-go: USD 0.29/1,000 emailsSource ↗ |
| PricingFree tier / trial | One-time 2,000 emails/account, up to 200 free/day; separate new-customer package promotion subject to purchase page.Source ↗ |
| PricingOverage | Switches to pay-as-you-go after package exhaustionSource ↗ |
| PricingData / attachment charges | Not stated in reviewed docs Review detailsReviewed pricing does not establish a separate data or attachment transfer rate. This is not confirmation that all such charges are zero. Reviewed 2026-09-08 Reviewed source 1 ↗ |
| PricingWhat counts as an email | Accepted messages billed regardless of final deliverySource ↗ |
| PricingCredit expiry | Resource packages: 6 monthsSource ↗ |
| ReliabilityOfficial incident historyProvider-reported status, not independent monitoring or a live health indicator. | Official status pageOpen ↗ |
| ReliabilityContractual uptime SLAA service commitment, not observed uptime. Eligibility, exclusions and credit rules differ. | Monthly availability credit threshold 99.50%; exclusions and claim rules apply. Credit tiers 10%, 20%, 50%.Source ↗ |
| ReliabilityMeasured uptime | Not measured |
| ReliabilityMeasured delivery latency | Not measured |
| ReliabilityMeasured inbox placement | Not measured |
| Sending & featuresHTTP API | SingleSendMail and BatchSendMail APIs.Source ↗ |
| Sending & featuresSMTP relay | Yes; configure an SMTP password for the sender address.Source ↗ |
| Sending & featuresSDKs | SDK sample generation through Alibaba Cloud OpenAPI Explorer.Source ↗ |
| Sending & featuresTemplates / editor | Up to 100 templates; recipient lists up to 10,000 addresses, subject to quota.Source ↗ |
| Sending & featuresWebhooks | Delivery results routed through EventBridge to targets including HTTP; separate service configuration required.Source ↗ |
| Sending & featuresInbound processing | Not stated in reviewed docs Review detailsAn inbound receiving or parsing workflow was not confirmed in the reviewed product documentation. Reviewed 2026-09-08 Reviewed source 1 ↗Reviewed source 2 ↗ |
| Sending & featuresCampaigns / automation | Batch sending uses templates and recipient lists via console/API.Source ↗ |
| Sending & featuresAnalytics | Real-time statistics by sending address and tag.Source ↗ |
| Operations & securitySuppression management | Account/global invalid-address lists; manual account-list control. Invalid-address hits can still be billed.Source ↗ |
| Operations & securityDaily / request limits | Initial 2,000/day, adjusted by reputation; monthly limit is daily quota × 30.Source ↗ |
| Operations & securityLog / activity retention | Not stated in reviewed docs Review detailsThe reviewed materials do not establish the full delivery-log retention policy; query windows are not necessarily retention periods. Reviewed 2026-09-08 Reviewed source 1 ↗Reviewed source 2 ↗ |
| Operations & securityDedicated IP | Paid dedicated IPs with IP pools, manual/automatic warm-up and optional shared-IP fallback.Source ↗ |
| Operations & securityHosting / region notes | Documented SMTP endpoints: Hangzhou, Singapore, Virginia and Frankfurt; choose matching console region.Source ↗ |
| Operations & securitySending domains | 5 domains and 100 sender addresses.Source ↗ |
| Operations & securitySender authentication | Domain ownership, SPF, MX, DKIM and DMARC configuration documented.Source ↗ |
| Operations & securitySSO | Not stated in reviewed docs Review detailsExternal identity-provider SSO protocols and plan eligibility were not established for this product. Reviewed 2026-09-08 Reviewed source 1 ↗Reviewed source 2 ↗ |
| Operations & securitySupport channels | Alibaba Cloud support tickets for inventory, limits and regional dedicated-IP requests.Source ↗ |
| Operations & securitySetup requirements | Real-name verification, activation, sending-domain DNS setup and sender configuration required.Source ↗ |
| ResourcesWebsite | Official resourceOpen ↗ |
| ResourcesDocumentation | Official resourceOpen ↗ |
| ResourcesPricing page | Official resourceOpen ↗ |
Unconfirmed cells include review details and sources: documentation may omit a value, sources may conflict, or a current page may be unreadable. Not measured means no independent test dataset.