Cold Email Infrastructure & Deliverability Tools

Infraforge is part of the Salesforge ecosystem that provides access to private cold email infrastructure with dedicated domains, mailboxes, and sending IPs for agencies and outbound sales teams sending large volumes of email.

MXToolbox is a purpose-built online diagnostic platform that helps teams perform MX record lookups, DNS checks, blacklist monitoring, SMTP diagnostics, and track email deliverability in real time.

Scrubby is an email validation platform designed for B2B sales and marketing that uniquely validates catch-all and risky emails to ensure 98% deliverability by incorporating risky and catch-all email checks.

Allegrow is an email deliverability platform that helps companies get outbound emails into primary inboxes through advanced detection and reputation management.

InboxAlly is the most powerful email deliverability and warmup service trusted by leading agencies, cold emailers, and deliverability experts since 2020.

TrulyInbox is an email warm-up and deliverability platform that helps businesses improve inbox placement and sender reputation through automated engagement simulation.

Valimail is the global leader in DMARC and email authentication that protects organizations against phishing attacks and email impersonation.

Mailgun is a transactional email API platform providing reliable email sending and deliverability management for developers and businesses.

Amazon Simple Email Service (SES) is a pay-as-you-go email sending service that provides low-cost, scalable email infrastructure for developers and businesses.

Twilio SendGrid is a cloud-based email API platform that enables applications to send transactional and marketing emails with high deliverability.

Postmark is a transactional email API service that helps developers send reliable application emails with high deliverability and comprehensive tracking.

MailGenius is an email deliverability testing and spam checking tool that helps identify spam triggers, authentication problems, and inbox placement issues before sending.

GlockApps is an all-in-one email deliverability testing solution that focuses on improving email deliverability through seed-based inbox placement tests across major ISPs.

Emailable is a US-based email verification service that improves domain reputation and increases mailing list quality with 99% deliverability guarantee.

MillionVerifier is the most comprehensive email verification service with 99%+ accuracy, the lowest prices, and a 100% money-back guarantee for risky emails.

Bouncer is an email verification platform trusted by 5,000+ companies to clean email lists and improve sender reputation with 4.9 rating on major review sites.

NeverBounce is a real-time email verification and list cleaning platform trusted by 96,000+ customers to verify email addresses and reduce bounce rates.

ZeroBounce is a 99.6% accurate email verification and deliverability platform that helps businesses maintain clean email lists and improve sender reputation.

Microsoft 365 (formerly Office 365) is a comprehensive cloud-based suite of productivity tools including Outlook for business email sending with enterprise-grade reliability.

Google Workspace (formerly G Suite) is an integrated suite of cloud-based productivity tools including Gmail for business email sending, widely used for professional communication.

Maildoso is an SMTP and Google Workspace mailbox provider built specifically for cold email senders, offering reliable deliverability with IP rotation across global data centers.

Mailforge is a distributed email infrastructure platform that allows users to create hundreds of domains and mailboxes in minutes with premium deliverability optimized for cold outreach.

Warmy is an AI-driven email deliverability tool that helps businesses improve inbox placement through advanced warm-up automation and real-time performance insights.

Folderly is an email marketing software that helps businesses improve email deliverability and optimize campaigns with advanced email testing, spam filter analysis, and inbox placement tracking.

Mailivery is an email warm-up software that improves email sender reputation by facilitating AI-generated sales conversations in users' inboxes. It features unlimited mailbox warm-up with no per-inbox limits.

Lemwarm is an email warm-up and deliverability monitoring tool built by Lemlist that automates warm-up by sending and receiving emails through a network of 20,000+ domains across 150+ countries.

Warmbox.ai is an AI-powered SaaS platform that automates the email warm-up process by sending realistic, human-like interactions from your inbox. It helps ensure cold emails reach recipients' main inboxes rather than spam folders.

Mailreach is an email deliverability tool that automates email address warming through natural conversations with 20,000+ high reputation inboxes. It includes domain and inbox health checks and a reputation tracking dashboard.

Smartlead.ai is an AI-driven cold email outreach platform that automates sales prospecting with multi-channel email and SMS outreach, automated follow-ups, smart personalization, and email warm-up.