Email Assistant
11 tools in Email Assistant
Best 11 Email Assistant Tools in 2026
Postfleet, Engine Mail, Nitrosend, Salestrics Mail, MailAdept, Quartz, NowPaid, Leanbox, AgentEmail, Uplizd, Lavender are among the best paid / free Email Assistant tools.
Lavender
Lavender is an AI-powered email assistant that helps users write more effective emails by providing real-time suggestions, personalization tips, and performance insights to improve engagement and resp
NowPaid
NowPaid by NowPaid is an AI-powered invoice reminder tool for freelancers and studios that writes human-sounding overdue email reminders and sends them on your schedule, eliminating manual chasing.
Uplizd
Uplizd by Uplizd.ai automates personalized follow-up emails and onboarding sequences from your own inbox, making each message feel human and tailored.
AgentEmail
AgentEmail by AgentEmail.co is an AI-powered email assistant for automating responses, drafting messages, and managing inboxes efficiently.
Leanbox
Leanbox by Leanbox helps you reach inbox zero across all your email accounts in seconds, using smart automation to quickly clear clutter and stay organized.
Quartz
AI email assistant by Quartz that prioritizes important messages, drafts replies in your voice, and keeps your emails private by never sharing them with AI providers.
MailAdept
MailAdept is an email infrastructure tool by a specialized team that audits, fixes deliverability issues, monitors email health, secures authentication, and improves inbox placement.
Salestrics Mail
Salestrics Mail is a business email solution by Salestrics, integrated directly into your CRM workspace. It offers personal mailboxes, IMAP/SMTP support, AI drafting, Gmail sync, and CRM context on ev
Nitrosend
Nitrosend provides agents with email infrastructure for sign-ups, onboarding, marketing, transactional emails, inbox management, and customer replies.
Engine Mail
A free, native Mac email app by Engine Mail that supports Gmail, Outlook, iCloud, Yahoo, Zoho & IMAP. It blocks trackers and phishing, reduces inbox noise, and runs AI on your own key.
Postfleet
Postfleet by Postfleet provides email infrastructure for AI agents, parsing, classifying, and extracting inbound emails to your schema while screening for prompt injection before agents process them.