How Systomex Works: Step-by-Step Guide
Everything you need to know about setting up your domain, broadcasting high-volume campaigns, managing audience hygiene, and getting emails into the primary inbox.
Domain Connection & Cryptographic DNS Setup
Google, Yahoo, and Microsoft enforce strict domain authentication. Without SPF and DKIM 2048-bit keys, messages are flagged as suspicious or routed directly to spam.
Systomex generates 3 unique CNAME records when you enter your domain in Dashboard > Sending Domains. Paste them into your DNS provider:
Host: sx1._domainkey.yourdomain.com → Target: sx1.dkim.systomex.comTells inbox providers that Systomex cloud relay servers are authorized to send emails on your domain's behalf:
v=spf1 include:amazonses.com ~allSpecifies how receivers should handle unauthorized messages claiming to come from your domain:
Host: _dmarc.yourdomain.com → Value: v=DMARC1; p=none;Audience Management & Zero List Hostage Fees
Never pay for inactive contacts. Upload your subscriber lists, create segmented tags, and let our engine clean invalid records before you hit send.
Import CSVs with columns: email, first_name, last_name, company, tags. Systomex normalizes addresses, strips whitespace, and flags duplicate emails automatically.
Duplicate contacts across multiple lists are deduplicated at dispatch time, ensuring a customer never receives duplicate emails or consumes double quota.
Campaign Creation, Dynamic Tags & RFC 8058
Create marketing campaigns or integrate transactional emails via our visual canvas or developer TypeScript SDK.
Systomex automatically injects List-Unsubscribe: <https://...> and List-Unsubscribe-Post: List-Unsubscribe=One-Click into all marketing headers. This protects your sender score and prevents spam flag penalties.
Systomex High-Throughput Dispatch & Automated Reputation Shield
How our infrastructure dispatches campaigns and protects your sending domain reputation in real time.
Routed through Systomex high-performance delivery clusters with dedicated warm IP pools and sub-50ms dispatch latency.
Handles 1,250+ emails/sec with rate-limiting to prevent ISP throttling from Gmail or Yahoo.
Hard bounces and spam complaints are automatically suppressed so future sends never touch them again.
Local Bangladeshi Payments & Automated Tax Invoices
No foreign card requirements or unexpected bank taxes. Pay directly in BDT or international USD.
- Choose plan (Starter ৳299, Basic ৳599, Growth ৳1,199, Pro ৳2,499)
- Send payment to our verified merchant account
- Input your 10-digit transaction ID (TrxID) in checkout
- Email quota is credited instantly to your organization
Every settled subscription generates a compliant PDF invoice (SX-YYYY-XXXXXX) with your company BIN, line item details, and VAT breakdown for corporate audit.
System Guide FAQ
Frequently asked questions about technical setup and operation.