Postbox Consultancy Services (OPC) Private Limited
AgencyEmail Deliverability and Email Marketing Consultation, Full Service Email Marketing Agency, Emails Deliverability Audits, Email infrastructure MTA setup
2-10 · 100% Job Success · since 2017
View on Upwork
WorldTop 1%
IndiaTop 1%
Email MarketingTop 1%
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$3.4k
MRR
est. monthly
#1,795
World rank
of 177,568
$257k
Lifetime earnings
since 2017
204
Jobs
completed
About
Email Deliverability & Infrastructure Experts
We help businesses scale email marketing with high inbox placement, robust infrastructure, and data-driven strategies. Whether transactional, marketing, or affiliate - we make sure your emails land in the inbox, not spam.
Our Core Services
📬 Email Deliverability Consulting
- Deliverability audits & diagnostics
- Inbox placement optimization
- Spam score reduction
- Email best practices implementation
- IP & domain reputation management
- Email list hygiene & verification
We work with industry tools like MxToolBox, Validity Everrest (ReturnPath, 250ok), EmailOnAcid, and more.
⚙️ Large-Scale Email Infrastructure Setup (MTA)
We design and deploy high-performance, scalable email sending systems:
- PowerMTA (Port25)
- GreenArrow (Engine, Studio, Monitor)
- MailerQ, EmailSuccess
- Postfix, Zimbra, hMailServer
- Postal, iRedMail
✔ Complete setup, optimization & scaling
✔ IP rotation, warmup & reputation strategy
🚀 Email Platform & Tool Implementation
Self-hosted & SaaS platforms:
- MailWizz, Mumara, Sendy, Mautic, Interspire
Third-party integrations:
- Klaviyo, Mailchimp, Amazon SES
- SendGrid, Mailgun, Elastic Email
- Customer.io, Infusionsoft
- GetResponse, Sendinblue, SparkPost
Cold outreach tools:
- Smartlead, Apollo.io, Instanly, Mailshake, Reply.io, Klenty, SalesHandy
Workspace setups:
- Google Workspace, Office365, Zoho Mail
📈 Email Marketing Strategy
Rankings
Where Postbox Consultancy Services (OPC) Private Limited ranks by monthly revenue, worldwide, in India, and in every Upwork service it competes in.
Team & footprint
Staff2-10 staff
On Upwork since2017
Rating100% Job Success
CountriesIndia
Postbox Consultancy Services (OPC) Private Limited
Agency owner
Client focus
Email Marketing
Postbox Consultancy Services (OPC) Private Limited works mainly in Email Marketing, ranking top 1% of agencies in that service.
MRR trendSoon
Last 12 weeks
Coming soon
Competitors on the board
Who ranks just above and below by MRR across all agencies.
This agency is #1,795 of 177,568 across all agencies.
RankAgencyMRRMRR trend
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Postbox Consultancy Services (OPC) Private Limited
Email Deliverability and Email Marketing Consultation, Full Service Email Marketing Agency, Emails Deliverability Audits, Email infrastructure MTA setup
$3.4k
Soon
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MRR benchmark
Postbox Consultancy Services (OPC) Private Limited earns more than 99% of all agencies we track.
Top 1%
among all agencies we track
$0–$500
38%
$500–$1k
9%
$1k–$2.5k
12%
$2.5k–$5k
10%
$5k–$10k
10%
$10k–$25k
11%
$25k–$50k
5%
$50k+
5%
Postbox Consultancy Services (OPC) Private Limited's bracket · $3.4k
You38%$0–$500
You9%$500–$1k
You12%$1k–$2.5k
You10%$2.5k–$5k
You10%$5k–$10k
You11%$10k–$25k
You5%$25k–$50k
You5%$50k+
Postbox Consultancy Services (OPC) Private Limited earns an estimated $3.4k/mo. That's 2.5× the typical agency and more than 99% of everyone we track.
Agencies with no recent MRR are excluded. Only the 14,027 agencies with active monthly revenue are ranked here.
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MRR is an estimate from Upwork's public figures - not an Upwork-official number.