Md Rakibul H.

I help B2B companies build cold email outreach that reaches the inbox. My work covers email deliverability, Google Workspace/Microsoft 365 email migration, DNS, and the full outbound system from setup to replies. Top Rated Plus | 435+ Upwork jobs | 14K+ hours I work on both sides of email: the technical infrastructure that determines whether your emails reach the inbox and the outreach system that determines whether the right prospects reply. If your emails are landing in spam, domains are losing reputation, campaigns are getting replies but no positive responses, or you need a complete cold email system built correctly, I can diagnose and manage the full setup. Cold Email Outreach: • ICP and prospect research • B2B lead generation and list verification • Instantly, Smartlead, Apollo, and Lemlist • Domain and mailbox infrastructure • Campaign setup and sending strategy • Cold email sequences and follow-ups • Mailbox/domain allocation and volume planning • Reply and positive-reply optimization • Campaign monitoring and reporting Email Deliverability: • SPF, DKIM and DMARC • DNS, MX and email authentication • Google Workspace and Microsoft 365 • Domain and mailbox reputation • Warm-up and sending ramp strategy • Gmail and Outlook spam troubleshooting • Google Postmaster Tools • Microsoft SNDS/JMRP • Inbox placement testing • Bounce and complaint analysis Email Migration & DNS: • Google Workspace and Microsoft 365 migration • Mailbox and domain migration planning • MX and DNS cutover • SPF, DKIM and DMARC alignment • SMTP and sending-domain configuration • Post-migration deliverability testing I don't assume that more warm-up or another DNS change will fix every deliverability problem. I look at the complete sending system: domain reputation, mailbox reputation, authentication, provider mix, sending volume, ramp speed, tracking, links, copy, lead quality, bounce data, complaints, and engagement. For cold outreach, I track the metrics that actually help make decisions: delivery, hard bounces, replies, positive replies, mailbox performance, and meetings generated. Then I adjust targeting, infrastructure, messaging, or sending strategy based on the bottleneck. Platforms I regularly work with include Instantly, Smartlead, Apollo, Lemlist, Google Workspace, Microsoft 365, SendGrid, Brevo, Customer io and Cloudflare. Whether you need a deliverability audit, cold email campaign, email migration, DNS fix, or a complete outbound system, send me your current setup and the problem you're seeing. I'll tell you what I would investigate first.