These tools handle the technical setup needed to send large volumes of emails without ending up in spam folders. Instead of manually creating Gmail accounts that get suspended after a few hundred cold emails, companies use these platforms to set up proper Email Sending infrastructure. A sales team can go from having three personal email accounts to managing 50 properly configured mailboxes across multiple domains in about an hour.
The software automates Email Authentication by configuring SPF, DKIM, and DMARC records that tell email providers your messages are legitimate. It also sets up the MTA (Mail Transfer Agent) and SMTP Relay connections that handle the actual message delivery. Users get pre-warmed email accounts, verified domains, and monitoring dashboards that track Email Deliverability metrics like bounce rates and spam folder placement. The system gradually builds sending reputation by starting with small volumes and increasing over time.
These platforms work differently from regular email marketing tools like Mailchimp, which focus on newsletter subscribers who opted in. They also differ from campaign automation tools that just send sequences and track replies. This category provides the foundational mailboxes and domains that those other tools connect to via SMTP. You're essentially renting email infrastructure instead of building it yourself, similar to using AWS instead of running your own servers.
Sales teams use these to scale from 100 to 5,000 daily emails without getting blacklisted. Marketing agencies run separate environments for each client to prevent one bad campaign from affecting others. Startups set up their entire outbound system in minutes rather than spending weeks learning DNS configuration and IP warming protocols. The technology handles the technical complexity that used to require dedicated email administrators, letting businesses focus on writing better messages instead of managing server configurations.
Cold Email Infrastructure Sorted In Minutes
Mailforge helps you quickly set up cold email infrastructure with hundreds of domains and mailboxes. It delivers premium deliverability with free automated setup and DNS management.
Jumpstart soaring revenue through mass outreach on day one
Superwave helps sales development reps, outbound teams, and sales-led companies rapidly scale outbound email efforts. It allows you to send large volumes of emails with high deliverability by managing bounce rates across multiple rotating inboxes and providing domain replacements in case of issues.
#1 Cold Mailbox Infrastructure
Mailreef offers cold email senders a mailbox infrastructure designed for scalable and stable cold email campaigns. It simplifies the domain, mailbox, SPF, DKIM, and DMARC creation process, which leads to improved deliverability.
Email Deliverability Services
Senders helps B2B companies, especially SaaS businesses, in the US, Canada, and the EU improve their email deliverability and protect their sender reputation for marketing campaigns. It leverages proprietary methods, a robust infrastructure, and tools like Sendgrid to ensure high email sendability, while offering strategy expertise, A/B testing, and custom copywriting services.
Generate Email Accounts For Cold Outreach At Scale
Mailscale helps B2B companies, including agencies, software companies, and consultants, generate email accounts for cold outreach faster and cheaper. It simplifies email account creation and setup with automated DNS, DKIM, and SPF records for improved deliverability and offers a dedicated support team.
Secure Static IP Solutionsto protect your sender reputation
Static IP’s For Cloud Applications helps developers and businesses support firewall ingress rules or application allow-listing with third parties by providing highly available load balanced Static IP solutions for cloud applications. It delivers this value by offering outbound HTTP/SOCKS5 and inbound SSL termination/passthrough, SSL certificate upload support, and multiple regional proxy server locations.
Automate email infrastructure with ease.
InboxAutomate streamlines creating and managing Google Workspace mailboxes with easy setup, bulk management, and automated email security for seamless cold email infrastructure.
Advanced email deliverability and reputation monitoring
SendForensics boosts email deliverability with advanced spam tests, reputation dashboards, and DMARC monitoring. Stay out of spam, track performance, and protect your sender reputation effortlessly.
Transactional email delivery, validation, optimization API
Mailgun is an email delivery service with API for sending, validating, and optimizing emails reliably at scale. It helps boost engagement, reduce bounces, and improve campaign performance.
Boost email deliverability and inbox placement.
MailMonitor helps improve email deliverability with analytics and expert remediation to land 90%+ in inboxes. It stops spam issues and boosts campaign engagement.
Reliable email sending and testing platform
Mailtrap provides reliable email sending with API/SMTP, sandbox testing, and actionable analytics for developers. Ensure fast delivery, easy email inspection, and high inboxing rates.
Permission-based email marketing with automation.
Pinpointe is an email marketing tool with mobile-friendly templates, smart segmentation, and automated drip campaigns to boost engagement and inbox delivery rates.
Email platform for scalable, reliable delivery
Twilio SendGrid is an email platform with 99% deliverability that boosts customer engagement and ROI. It offers scalable APIs and marketing tools for reliable, high-volume email delivery.
Cold Email Software
Instantly.ai helps agencies, sellers, freelancers, and teams scale their email outreach and improve lead intelligence. It achieves this by providing unlimited email account connections, deliverability optimization, AI-powered personalization, lead enrichment, and campaign pipeline analytics.
Email Deliverability Infrastructure
Mission Inbox helps email managers, agencies, and enterprises control and improve their email deliverability. It provides infrastructure and monitoring tools to manage domains, IPs, and mailboxes, offering real-time alerts and personalized suggestions to avoid spam filters and improve open rates.
Scale your Sales Prospecting with AI & Software
ColdIQ helps B2B companies generate more sales opportunities through managed cold outreach campaigns and sales system implementation. It achieves this by handling audience research, data enrichment, email setup, copywriting, and sending automation, while also offering training on sales tech and best practices.
Deliverability infrastructure is the technical setup that ensures emails reach recipients' inboxes instead of spam.
It improves email delivery rates, manages sender reputation, and monitors email authentication to boost inbox placement.
It uses protocols like SPF, DKIM, and DMARC to verify email authenticity and guides servers to trust your emails.
Setup is straightforward with guided tools, usually taking under an hour for standard email domains.
Basic tools are often free, but advanced features and large volumes may require paid plans starting around $20/month.
Pricing ranges from free for small domains to $50+ per month for full service and higher email volumes.
Key types include email authentication (SPF, DKIM, DMARC), feedback loops, and dedicated IP management.
Yes, it is specifically designed to optimize email sending and delivery performance.
Popular tools include Postmark, SendGrid, Mailgun, and SparkPost, known for reliable email delivery.
Common integrations are with email service providers, CRM systems, analytics platforms, and DNS management tools.