AuthSMTP
authsmtp.comOutgoing email relay with separate message and data quotas
Outgoing email relay with separate message and data quotas
Email API, SMTP and campaigns with batched event notifications
Community discussions, chat and moderation with hosted and self-managed options
Transactional email sending and inbound messages forwarded as JSON
Inspect a sample message for deliverability problems
Scheduled email campaigns with reusable suppression filters
AWS email sending and receiving with region-specific production access
Text and voice email with sender-controlled access options
Message colleagues in direct chats and channels with searchable history, mentions, and file sharing.
Run standalone team chat or connect conversations with Toolscase time tracking.
Run self-hosted office chat with group discussions, message synchronization, and screen sharing.
Absence requests, cover arrangements and scheduled Outlook replies
Social scheduling and shared content review with account-level team permissions
Paid private mail with Masked Email addresses and tracker protection
Define structured messages in `.proto` files and generate language-specific serialization code.
SMTP and API delivery with recipient-based volume and plan-specific logs
Email automation using layered customer profiles, decision points, and connected data
Team email design with restricted layout editing and a separate approval interface
Email delivery and campaign software with list-specific or global suppression scope
Email API and SMTP delivery with grouped unsubscribe management
Collaborative email design with workspace-specific brands, approvals and export connectors
Manage replies, call tasks and manual drafts in the same sales conversation queue
Free no-signup email tools and guides for email marketers.
A Chrome extension chatbot that uses the page you are on as context and your own OpenAI API key.