"A guide to sending email" matching MCP servers:

面向 Codex、WorkBuddy 等 AI 工具的知你AI助手合并版 Skills，涵盖当前会话分诊、客户查询与画像、历史会话检索、客户分群和 API Key 用量查询，并连接个微、企微、视频号、微信小程序、公众号、服务号、微信客服、微信小店、抖音号、小红书、微博、网站及H5客服等渠道。

Sendmux is an email inbox API and email API for AI agents. Use this MCP server to let authorised agents work with Sendmux mailboxes, inbound email, clean JSON parsing, webhooks, outbound sending, provider routing, logs, billing, and team controls.

提供全球238个国家/地区的进出口贸易数据查询，支持按企业名称、产品关键字、HS编码等多维度联合搜索。

Enables AI agents to send emails and manage tasks in Microsoft To Do with scoped, low-risk access to Microsoft Graph.

Enables agents to evaluate whether a product-adoption message is worth sending by applying a fixed, evidence-based rubric to a draft, recipient context, evidence, and the agent's own assessment, returning a send, revise, or hold recommendation with a score and reasons.

Enables AI agents to send transactional email, authenticate sending domains, track delivery, and diagnose deliverability issues programmatically.

Provides AI agents with real email infrastructure, enabling them to create inboxes, send/receive messages, and extract verification codes from incoming mail.

Enables any MCP-compatible AI agent to send WhatsApp messages, SMS, OTP codes, and email through a single REST API.

Read and write email through the Atomic Mail from an AI agent. Handles proof-of-work authentication and JMAP so the agent thinks in JMAP method calls. Use when the user asks to register an email inbox, list mailboxes, fetch or send email.

Private, EU-hosted email for AI agents over the open JMAP standard. Read, search, reply in-thread, organize and send from your own mailbox; sending is pinned to the signed-in mailbox.

Enables an assistant to send email and list sent emails through the Maillog email API.

通过IMAP和SMTP协议实现邮箱读写操作，支持腾讯企业邮箱，可收发邮件、管理文件夹和搜索邮件。

Enables connecting your own Gmail or SMTP mailbox and managing email through tools for sending, replying, searching, reading threads, and creating drafts.

Email validation MCP server using MailboxValidator API to determine validity of an email address.

Enables AI agents to send, receive, and reply to email through dedicated thread-aware mailboxes, with sandbox testing and compatibility across MCP clients.

MailKite offers email sending and receiving for agents at your domain or free inboxes Create inboxes for your agent Send emails from your agent Receive emails to your webhook Receive emails to your agent

让支持 MCP 的 AI 客户端直接调用票据识别能力，包括银行回单、对账单、增值税发票等解析。

Connects Claude to email, calendar, and tasks via Jinike AI, enabling inbox reading, email sending, event creation, task management, and daily briefings through Gmail, Outlook, and Google Calendar integration.

基于 Model Context Protocol (MCP) 的电子签署工具，支持文件上传、PDF转换、签署流程创建和状态查询等功能。

调用官方智睦云打印服务（any.webprinter.cn），支持查询打印机、上传本地文件、创建漫游打印任务、直接打印到指定设备，以及分别更新单双面、颜色、份数和纸张等打印参数。