Category
Email Deliverability
Key features
Deliverability crisis response
Embedded deliverability expert
Fallback domain and redundancy planning
01 — Overview
What is
Senders
Senders is an email deliverability service that embeds a team of email engineers with your company to own inbox placement. It handles crisis response when sending volume or reputation drops, builds redundancy plans with fallback domains and authentication paths, and helps teams scale volume safely. It covers outbound, marketing, transactional and mailbox sending.
02 — Who it’s for
Ideal Customer Profile
Built for sales, marketing and RevOps teams that send high email volume, including cold outbound teams and fast-growing companies. Agencies and SMBs fit well, as do larger senders with several sending platforms.
03 — Capabilities
Key Features
Deliverability crisis response
Embedded deliverability expert
Fallback domain and redundancy planning
Real-time reputation monitoring
Volume ramp planning
Spam test and domain check tools
05 — Similar tools
Alternatives
06 — FAQ
Frequently Asked Questions
What is Senders used for?
Senders keeps a company's email out of spam. Its engineers monitor reputation, fix deliverability problems when they happen and plan domains and volume so sending can grow safely.
Is Senders software or a service?
It is mainly a service. A senior deliverability operator joins your Slack, Teams or recurring calls, backed by a team, and Senders also offers an MCP connector and standalone checking tools such as a spam test and a domain checker.
Which sending platforms does Senders support?
It covers sales engagement tools like Salesloft, Outreach, Apollo, Smartlead, Instantly and Lemlist, marketing platforms like HubSpot, Marketo and Customer.io, transactional services like SendGrid, Mailgun and Amazon SES, plus Google Workspace and Microsoft 365.
How fast does Senders respond to a deliverability crisis?
For urgent cases Senders offers expedited intake with a response within two business hours, followed by triage, containment and a recovery plan.






