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Fiverr Pro
English
$
USD
I will build b2b cold email SMTP infrastructure for reliable sending
SOLOK
About this gig
Need B2B cold email infrastructure built for control, deliverability, and scaling?
I build client-owned SMTP infrastructure for B2B cold email operations not just a basic mail-server install.
Your setup can include:
- Production SMTP/MTA on your VPS
- SPF, DKIM, DMARC, PTR/rDNS, HELO/EHLO, and TLS
- MailWizz or any SMTP-compatible platform
- Queue, retry, routing, and sending-pool configuration
- Bounce processing and suppression workflows
- Feedback-loop/complaint integration where supported
- Monitoring, validation, and technical handover
Why clients choose this service:
A poorly configured outbound stack can damage IP and domain reputation. I design the infrastructure so authentication, bounce handling, complaint signals, routing, and monitoring work together, giving you more control and reducing avoidable reputation damage.
Ideal for agencies, lead-gen teams, and B2B businesses needing scalable outbound email infrastructure.
Before ordering, message me with:
Sending volume, platform, domains, VPS/provider, and your goals.
Important: Deliverability is never guaranteed. Results depend on sender reputation, list quality, sending behavior, and mailbox-provider decisions.
Get to know SOLOK
SOLOK
SMTP and Email Infrastructure, System Administration, Cloud and DevOps
- FromBangladesh
- Member sinceAug 2026
- Avg. response time1 hour
Languages
English
Reliable email delivery starts with reliable infrastructure. I help businesses build, optimize, troubleshoot, and maintain SMTP, email, Linux, and server environments where uptime, deliverability, security, and performance matter.
I work with MailWizz, Mautic, Interspire, Mumara, Nginx, Apache, PHP, MySQL, MariaDB, Redis, WordPress, Proxmox, and VMware ESXi, including high-volume email performance tuning, backup, and disaster recovery.
My focus is simple: scalable, maintainable infrastructure built for real workloads and business goals, not just software installation.
My Portfolio
FAQ
Is this just a basic SMTP server or MailWizz installation?
No. This is a client-owned B2B email infrastructure deployment covering SMTP/MTA, DNS authentication, routing, queue/retry controls, bounce and complaint suppression, validation, documentation and handover. Exact components follow the selected package.
What controls help protect IP and domain reputation?
I configure authentication alignment, HELO/PTR/TLS, controlled routing and sending pools, queue/retry behavior, bounce classification, complaint ingestion, suppression and validation. These controls reduce avoidable operational damage but cannot eliminate reputation risk.
Is this built for high-volume B2B cold email outreach?
Yes, for controlled, policy-compliant B2B outreach. Capacity is qualified against server resources, IP/domain strategy and provider limits. I build the infrastructure; you operate campaigns. Lists, spam activity and guaranteed inbox placement are excluded.
Why is complaint handling critical for high-volume sending?
Reputation can decline before inboxing or throughput reveals the damage. Returning available complaint signals to the sending stack helps suppress known complainers faster and reduce avoidable repeat-complaint damage across IP and domain assets.
Does the system capture every spam complaint?
Complaint-feedback integration via webhook or email, where supported
Can the infrastructure support millions of emails per day?
It can be architected for high-volume use, including millions per day, but capacity depends on server resources, MTA design, IP/domain strategy, provider policies, reputation and package scope. Volume is assessed before deployment; unrestricted throughput is not guaranteed.
Do you guarantee inbox placement or deliverability?
No. Deliverability depends on data quality, content, engagement, sending patterns, authentication, reputation and mailbox-provider decisions. I engineer and validate the infrastructure and complaint controls, but no specific inbox placement result is guaranteed.
What must I provide, and will I own the system?
You provide the client-owned VPS/cloud, IPs, domains/DNS and application access; you retain administrative ownership. Confirm access in Requirements, but do not paste passwords there. Server, license, IP, domain and FBL/provider fees are excluded unless stated.
How does the milestone workflow work?
Requirements covers assessment and planning. Setup covers SMTP/MTA deployment, authentication, app integration, routing and complaint controls. Delivery covers validation, documentation, technical handover and limited launch support. Ongoing campaign operation is excluded.
