Sendmarc ensures that email will be continually protected from fraudulent use through proactive monitoring of your email ecosystem. Sendmarc protects your emails from impersonators, fraudsters and attackers. Email received bearing your identity has been verified as authentic. Sendmarc identifies real email and stops fake emails so users do not have to worry.
Sendbird is the AI customer experience company. We provide the infrastructure that powers delight.ai – the branded AI concierge, and the Sendbird Communication Suite, the world’s #1 communication API platform. Together, they enable brands to deepen connection and deliver personal, trusted, and unforgettable customer experiences. Trusted by 4,000+ leading apps—including DoorDash, Match Group, Noom, and Yahoo Sports—Sendbird powers over 7 billion conversations every month, offering exceptional reliability, security, and compliance that meet enterprise-level demands. Founded in 2013, Sendbird is backed by ICONIQ, SoftBank, Tiger Global and Y Combinator.
The world's first in-repository attack and defence wargame to learn secure coding. Find, hack and fix security vulnerabilities inspired by real-world incidents.
WarmySender is an all-in-one cold outreach platform that combines email warmup, cold email campaigns, and LinkedIn automation into a single tool. It helps sales teams and marketers improve email deliverability through its peer-to-peer warmup system with automatic spam rescue and health scoring, while also enabling multichannel outreach sequences across email and LinkedIn. Key features include mailbox rotation, A/B testing with statistical analysis, merge tag personalization, campaign safety controls with bounce protection, a unified inbox for managing replies, a built-in leads database with 20M+ B2B contacts, email finding and verification, and detailed analytics and reporting. WarmySender supports team collaboration with role-based access and offers API and webhook integrations for connecting with CRMs and other tools.
SendHub makes business communication fast, simple, and effective. The complete online business SMS messaging solution helps thousands of companies communicate more effectively with onthego workforces, customers, and more.
Atomic Mail Sender is a mass emailing software for email marketing campaigns that allows to create and send a large number of emails to an unlimited number of recipients.
Giggal.ai is a catch-all email verification tool that gives every address a clear Valid or Invalid result, including the risky and accept-all emails most verifiers leave result as 'risky'. It also verifies mailboxes protected by SEG gateways like Proofpoint, Mimecast and Barracuda, where other tools stop without an answer.
Users keep bounce rates under 3%, protecting sender reputation and deliverability. Over 100 million emails verified at 98.5% accuracy.
Verify a single address, paste a list, upload files up to 50,000 emails, or connect Mailchimp, SendGrid, Mailgun, ActiveCampaign and more. Developers get a REST API, and an MCP server lets you verify emails directly from Claude or ChatGPT.
Free to start: 1,000 credits, no card, credits never expire. Paid from $9.90 per 10,000 emails.
Professional email marketing from iContact helps businesses of all stages and sizes get results. From the small business just getting started to the professional marketer looking for strategies to maximize campaigns to the high-volume sender with 15,000 to 5 million+ subscribers, iContact offers a plan to meet every need.