SMTP SPY
Email Infrastructure, SMTP Testing & Deliverability Agency
If this is your agency
#16,872
of 28,921 agencies on Upwork by lifetime earnings, and #553 in Email Marketing.
- #16,871MeshLogix$2 ahead
- #16,872SMTP SPYthis agency
- #16,873Smart A&I Solutions$0 behind
Total earned
$1.3K
lifetime, as published
Jobs
6
contracts to date
Hours
49
billed hourly
Job Success
Not rated yet
not yet rated
Hourly rate
$25–$50/hr
min. project None
Index Score
34
#21610 overall
Insights
How these are computed- Run-rate, measured
- pending
- Needs two observations at least 14 days apart. Our next read of this page turns this on. Nothing is extrapolated from a single contract.
- Lifetime pace
- $126/yr estimate
- Lifetime earnings divided by years on Upwork. A floor on historical pace, not a forecast.
- Earnings per job
- $214
- Average contract value to date.
- Recent earnings, per Upwork
- $0
- The "recent" figure Upwork attaches to the directory card. Upwork does not publish the window, so it is shown as its number, not ours.
- Realised hourly
- $26/hr
- Total earned over billed hours. Fixed-price work inflates it; compare with the rate card.
Index Score breakdown34.3/100
Scale 17.8/40Quality 10/20Trust 0/15Momentum 3/15Team 3.5/10
Observation history
Every read of the public page. Last observed Oct 30, 2026 (live read).
| Observed | Earned | Δ | Jobs | JSS |
|---|---|---|---|---|
| Oct 30, 2026 | $1.3K | No change | 6 | Not rated |
| Oct 29, 2026 | $1.3K | 6 | Not rated |
About
Fix low open rates, resolve SMTP relay errors, and protect your domain reputation. SMTP SPY (a division of Zexabit Technology Ltd) provides enterprise-grade email deliverability diagnostics, mail server setup, and inbox placement optimization. Whether you are scaling cold outreach, managing transactional web apps, or running high-volume broadcast platforms, our agency ensures your messages hit the primary inbox—never the spam folder. Core Specializations & Services • Email Authentication & Compliance Setup: - Strict SPF, DKIM, DMARC (p=reject / p=quarantine), and BIMI alignment. - Custom Return-Path / Mail-From domain configuration. - Google Workspace & Yahoo bulk sender compliance verification. • Mail Server & SMTP Infrastructure Engineering: - Production setup and hardening of Postfix, Rspamd, Exim, PowerMTA, and Haraka. - Cloud email service integration: SendGrid, Amazon SES, Mailgun, Postmark, and SMTP2GO. - Multi-IP pool configuration, IP rotation, and reverse DNS (PTR) alignment. • Deliverability Audits & Diagnostic Monitoring: - Real-time SMTP protocol debugging, packet analysis, and server log auditing. - Spam trap detection, domain/IP blacklist removal (RBL/DNSBL checks), and inbox placement testing. - Warm-up protocols for new domains and dedicated IP pools. • Marketing Automation & Transactional Integration: - Self-hosted platform deployment: Mautic, Mailcoach, and custom application API integrations. - Webhook and real-time bounce/complaint loop (FBL) handling. Technical Stack & Tools • Protocols & Standards: SMTP, STARTTLS, SPF, DKIM, DMARC, BIMI, DNSSEC • MTAs & Mail Servers: Postfix, Rspamd, PowerMTA, Exim, Dovecot • Cloud Email APIs: Amazon SES, SendGrid, Mailgun, Resend, Brevo, Postmark • Platforms & CRM: Mautic, WordPress, Custom Node.js / Python / PHP Backends • Diagnostics & Security: WireShark, tcpdump, MXToolbox, Spamhaus, Google Postmaster Tools, Microsoft SNDS Why Enterprise Clients Partner With SMTP SPY Root-Cause Troubleshooting: We analyze raw SMTP protocol handshakes, connection headers, and server logs to isolate delivery failures. Zero Downtime Implementation: All DNS changes and mail server configurations are deployed cleanly with zero interruption to live mail flow. End-to-End Documentation: Every contract includes a detailed infrastructure runbook and DNS verification report for your internal team. Ready to resolve your deliverability bottlenecks? Click Invite to Job or Contact Agency to discuss your mail infrastructure needs today.Read more
Skills
Email EtiquetteEmail SecurityEmail Campaign OptimizationKlaviyoDigital MarketingEmail MarketingPostfix SMTP ServerEmail Campaign SetupSMTPActiveCampaignMailchimpEmail DeliverabilityMailWizzEmail AutomationWeb Development
Agency facts
- Team size
- 2-10
- Teams on Upwork
- 1
- Founded
- Not published
- Member since
- Aug 2016
- Last contract
- Mar 2025
- Owner
- Monuruzzaman M.
- Client focus
- Large business, Medium business, Very small business, Small business
- Members in
- United Kingdom, Bangladesh
- Languages
- Not published
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SMTP SPY is #16872 of 28,921 Upwork agencies. Post the card, or share the link and the card comes with it.
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#16872 overall
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#553 in Email Marketing
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#1127 in Digital Marketing
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#2843 in Web Development
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#588 in Bangladesh
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