Md Rakibul H.

Email Deliverability | Google Workspace | M365 | Email Migration | DNS

I’m an IT Support Engineer specializing in email deliverability, Google Workspace, Microsoft 365, email migration, DNS authentication, and cold email infrastructure. I’m a Top Rated Plus freelancer with 430+ Upwork jobs, 98% Job Success, $100K+ earned, and 13,000+ hours worked. My experience covers B2B email systems, inbox placement, email migration, DNS configuration, sender reputation, and technical cold email infrastructure. Largest email migration completed: 200 mailboxes. What I can help with: * Email deliverability audits and spam-folder troubleshooting * Google Workspace / G Suite email setup and administration * Microsoft 365 / Office 365 and Exchange Online configuration * Google Workspace to Microsoft 365 email migration * Microsoft 365 to Google Workspace email migration * Zoho Mail, GoDaddy, Rackspace, cPanel, IMAP, and cross-platform email migration * Microsoft 365 tenant-to-tenant migration * SPF, DKIM, DMARC, MX, PTR, TXT, CNAME, autodiscover, and domain alignment * Microsoft Outlook, Exchange Online, SMTP, OAuth, and mail-flow troubleshooting * Email sending and receiving issues * Inbox placement testing and spam-folder diagnosis * Sender and domain reputation recovery * Blacklist checks and warmup strategy * Sending limits, mailbox ramp-up, and domain reputation management * Cold email infrastructure for Smartlead, Instantly, Apollo, HubSpot, and similar platforms * Custom tracking domains and sending-domain configuration * WP Mail SMTP and WordPress contact-form email delivery * DNS troubleshooting across Cloudflare, GoDaddy, Namecheap, cPanel, and other providers Google Workspace I configure and troubleshoot Google Workspace email, Gmail, users, aliases, groups, forwarding, domain verification, MX records, SPF, DKIM, DMARC, and Google Admin settings. I also handle migrations into or out of Google Workspace, including mailbox data, DNS cutover, mail-flow testing, and post-migration validation. Microsoft 365 I work with Microsoft 365, Office 365, Outlook, Exchange Online, shared mailboxes, users, mail flow, DNS authentication, SMTP/OAuth, and email migration. I troubleshoot issues including missing incoming email, outbound delivery problems, spam placement, authentication errors, Outlook configuration, and DNS misconfiguration. Email Migration I plan and execute migrations between Google Workspace, Microsoft 365, Zoho Mail, GoDaddy, Rackspace, cPanel, and IMAP-based email providers. Migration projects can include: * Email * Contacts * Calendars * Aliases * Forwarding * Shared mailboxes * DNS cutover * Mail-flow validation * Post-migration testing My largest migration to date involved 200 mailboxes. Email Deliverability I look beyond whether an email technically sends. I review: * SPF, DKIM, and DMARC alignment * MX and DNS configuration * Sender reputation * Domain reputation * Inbox and spam placement * Blacklist status * Sending volume and patterns * Mailbox ramp-up * Warmup strategy * Bounce risk * Tracking configuration * Content and list risk I also work with tools such as Google Postmaster Tools, Microsoft SNDS, MXToolbox, GlockApps, and Mail-Tester when appropriate. Cold Email Infrastructure I build and troubleshoot cold email infrastructure while keeping outreach separate from your primary business domain where appropriate. I can configure: * Sending domains * Google Workspace or Microsoft 365 mailboxes * SPF, DKIM, and DMARC * Custom tracking domains * Warmup * Mailbox rotation * Domain rotation * Daily sending limits * Smartlead * Instantly * Apollo * HubSpot * Inbox placement testing * Reputation monitoring I can build the infrastructure from scratch or troubleshoot an existing setup experiencing spam placement, poor inbox rates, DNS issues, or unhealthy sending domains. Platforms and systems I work with include: Google Workspace Microsoft 365 Exchange Online Outlook Zoho Mail GoDaddy Rackspace cPanel Cloudflare Namecheap Smartlead Instantly Apollo HubSpot Klaviyo Mailchimp WordPress WP Mail SMTP You get a clear diagnosis, clean configuration, testing and validation, plus 7 days of support after project completion. Send me a message with the issue you’re facing, whether it involves email deliverability, Google Workspace, Microsoft 365, email migration, DNS authentication, spam placement, SMTP, or cold email infrastructure. I’ll review the problem and tell you the best next step before you commit to a larger project.