它们的增长率如何比较？

Sendmux 的月度环比增长率为 -98.3%；Superhuman 为 +7.9%。

价格如何比较？

Sendmux: 免费。Sendmux is listed as free, with two free mailboxes available to start and agent onboarding designed to be self-service. Pricing beyond the initial free mailboxes is not detailed on the landing page, so check the pricing page for current tiers. Superhuman: 付费。付费产品，提供个人版、团队版与企业版；最新席位价格与包含功能请见官方定价页。

Sendmux 和 Superhuman 的替代方案有哪些？

相关分类中的其他工具包括 Missive, Spark Mail, Carly AI, BlueMail, Merge。

Sendmux vs Superhuman — 流量对比 (37 vs 651.42万)、价格与选型结论

Open AI Tools

Sendmux vs Superhuman — 流量对比 (37 vs 651.42万)、价格与选型结论 | Open AI Tools

并排流量和规格矩阵

维度 / 指标	Sendmux	Superhuman
官方域名	sendmux.ai	superhuman.com
定价模式	免费	付费
月访问量	37 (37)	651.42万 (6,514,241)
月度环比流量变化	-2196 (-98.3%)	+47.75万 (+7.9%)
主要市场与份额	🇺🇸 美国 (100%)	🇺🇸 美国 (56.8%)
直接访问 / 月	12	495.94万
用户评分	4.2	4.5
支持的平台	网站	网站

Sendmux

Sendmux is an email API built for AI agents. It gives each agent a real mailbox on a verified domain or a shared address, lets it send outbound mail through your own providers, and streams inbox events live so agents can react instead of polling.

Agent mailboxes

Provision mailboxes on verified domains or a shared myagent.mx address, with clean JSON output that strips signatures and quotes.

Provider-flexible sending

Send over HTTP or SMTP using the same mailbox credential as a Bearer token and SMTP password, with Idempotency-Key retries and attachment support.

Routing controls

Bind keys to providers, delivery groups, weights, and quota windows so traffic stays inside the boundaries you set.

Real-time events

Signed webhooks for delivery and receipt events, an SSE stream for live mailbox clients, and typed change polling for resync.