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Agency · SendGridFree audit

SENDGRID AGENCY TO SEND EMAIL AT MASSIVE SCALE WITHOUT BURNING IPS

Hack'celeration is a SendGrid agency that ships email at real scale. The team handles dedicated IP setup, warmup, subdomain authentication, Dynamic Templates, suppression lists, event webhooks and observability. Result: 98%+ inbox placement on 1M to 100M emails per month. SendGrid powers some of the largest senders on the internet; without setup discipline, your IPs blacklist by week 2.

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SendGrid Agency — workflow & automation.
Hack'celeration Agency

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Our agency · why us

Why pick a SendGrid agency that owns infrastructure

Most teams sign up to SendGrid, plug the API, send 50,000 emails on a fresh IP, and watch inbox placement crash to 40% in a week. Hack'celeration ships a different setup. Dedicated IPs with 30-day warmup, full domain authentication (SPF, DKIM, DMARC, BIMI), subdomain split (transactional vs marketing), suppression list sync, event webhooks wired to observability. Within 4 weeks, SendGrid sends sustainably at 1M to 100M emails per month with 95%+ inbox placement.

SendGrid is treated as critical infrastructure, not a SaaS button. Twilio SendGrid Marketing Campaigns for newsletter/lifecycle, SendGrid Email API for transactional, Dynamic Templates with Handlebars, subusers for multi-brand setups, IP pools for separation. SendGrid's own benchmark: 90B+ emails per month across all customers, deliverability metrics among the industry's best when configured correctly. Field note: an e-commerce client was sending 4M emails/month on shared IPs and seeing 71% inbox placement (lots in Promotions tab, not Inbox). The team migrated to a dedicated IP pool with warmup, split transactional and marketing into separate subdomains and IPs, rebuilt 12 Dynamic Templates with MJML. Inbox placement climbed to 96% in 8 weeks. Revenue per email lifted 38%. Same volume, real infrastructure.

You also get growth hacking reflexes for content optimization: A/B testing subject lines, send time optimization, list segmentation by engagement. Quick win: separate transactional and marketing on day 1. They have different deliverability profiles and should never share an IP. SendGrid's IP pool feature makes this clean.

SendGrid · agency services

What a SendGrid agency does for you

SendGrid setup is four moving parts: infrastructure, templates, operations, observability. The team owns each and ties them to your app and CRM. No silent fires.

Infrastructure. Domain auth (SPF, DKIM, DMARC with reject policy after baseline), BIMI for logo display in Gmail, subdomain split (send.yoursite.com for marketing, mail.yoursite.com for transactional), dedicated IPs with 30-day warmup, IP pools per stream. The team also configures subusers for multi-brand or multi-tenant setups (each subuser has its own reputation).

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Templates. Dynamic Templates with Handlebars syntax, MJML-based responsive design, light/dark mode CSS, accessibility tags, plain-text fallback. The team builds 10 to 25 templates per client (transactional + marketing), versioned in code and deployed via SendGrid API. According to SendGrid data, templates with proper plain-text alternative deliver 8 to 12% better than HTML-only.

Operations. Suppression list sync (unsubscribes, bounces, complaints, blocks), event webhooks to your app or CRM (HubSpot, Pipedrive), suppression group management for marketing categories, retry logic. The team plugs n8n for orchestration (Slack alerts on critical failures, daily delivery digest, suppression sync).

Observability. Dashboards on delivery, opens, clicks, bounces, complaints, blocks, per IP and per template. SendGrid's native Stats are good; the team layers in Grafana, Metabase or Looker via the Stats API for cross-stream views and anomaly alerting.

98%+ INBOX
98%+ INBOX
placement on transactional, 92%+ on marketing
100M/MO
100M/MO
emails sustainable per client at full scale
+38%
REVENUE
per marketing email after deliverability fixes
SendGrid · playbook

SendGrid done right in 4 weeks

Week 1: domain auth (SPF, DKIM, DMARC), subdomain split, dedicated IP order, BIMI logo upload, suppression list import. The team usually finds existing setups lack DMARC (or have it in monitoring mode forever) and missing subdomain separation. Week 2: IP warmup starts (slow ramp: 50 emails day 1, 100 day 2, doubling weekly), Dynamic Templates ported, event webhooks wired to your app.

Weeks 3 to 4: continued IP warmup, marketing campaign migration, suppression rules per category, observability dashboards, cutover from previous provider. By the end of week 4, you have dedicated IPs with healthy reputation, clean templates, working dashboards. Quick win: enable DMARC with a quarantine policy (not reject yet), monitor for 2 weeks, then move to reject. Most teams leave DMARC in monitoring forever and miss spoofing alerts.

SendGrid · cross-team

A SendGrid agency for every team

Engineering. Clean SDKs (Node, Python, Ruby, Go, PHP, Java, C#), idempotent send endpoints, signed event webhooks, sandbox vs production environments, dev-friendly logs. The team integrates SendGrid into your stack in 2 to 5 days and writes the docs your future engineers will actually read. The team also handles subuser provisioning for multi-tenant SaaS that sends on behalf of customers.

Marketing. Marketing Campaigns for newsletters, lifecycle, automation. The team builds segments by engagement (last open, last click), behavioral triggers (cart abandon, content downloaded), and A/B test workflows. Bonus: integration with HubSpot for lifecycle email when HubSpot's native send hits volume limits, with SendGrid handling the heavy lifting.

RevOps / Ops. Centralized reporting on email-driven revenue, cost per send, bounce rate per segment, complaint rate per template. The team builds dashboards in Metabase or Looker on top of SendGrid's API. You see unit economics clearly.

<5 DAYS
<5 DAYS
integration time from kickoff to first send
1
DASHBOARD
for email revenue, cost, bounce, complaint cross-streams
+22%
REV
from rebuilt marketing automations on Marketing Campaigns
Our agency · innovations

A SendGrid agency that treats deliverability as a system

Most agencies stop at SPF/DKIM/DMARC and call it deliverability. The team treats deliverability as an ongoing system. Daily monitoring of sender reputation via Google Postmaster Tools, Microsoft SNDS and SendGrid's own analytics. Auto-pause rules on IP pools when complaint rate exceeds 0.1% in a 24h window. Engagement-based sending: best segments first, then full list. This is the difference between 75% inbox placement and 95%.

The team also pairs SendGrid with Postmark when transactional speed matters more than scale (Postmark wins under 5M emails/month on transactional). For marketing-heavy setups, HubSpot handles the orchestration and SendGrid handles the volume send. With n8n as orchestration glue, you get a clean separation: HubSpot decides who and when, SendGrid handles the actual send. This mixed setup beats a single-platform approach above 500k marketing emails per month.

Frequently asked questions

01How does SendGrid compare to Postmark?+
Different priorities. Postmark is laser-focused on transactional, with sub-500ms delivery and 99%+ inbox placement. SendGrid scales further (1M to 100M+ emails/month) and handles marketing + transactional in one platform. For most SaaS under 5M emails/month where transactional reliability matters most, Postmark wins. Above that, or when you need marketing automation in the same tool, SendGrid wins. The team often runs both: Postmark for transactional, SendGrid for marketing volume.
02Should I use dedicated or shared IPs?+
Depends on volume. Below 50,000 emails/month, shared IPs are fine (and cheaper). Above 100,000 emails/month, dedicated IPs let you control your sender reputation. Above 1M/month, dedicated IP pools (separate IPs per stream) are standard. The team usually orders 2 to 4 dedicated IPs per client at scale, splits them by purpose, and warms each one for 30 days before full send.
03How does IP warmup work and how long does it take?+
IP warmup is the gradual ramp of send volume on a new IP to build reputation with mailbox providers. Day 1: 50 emails. Day 2: 100. Day 3: 200. Doubling roughly daily until you hit target volume. Total ramp: 3 to 5 weeks for moderate volume, 6 to 8 weeks for very high volume. Skipping warmup tanks inbox placement and can blacklist an IP. The team always runs warmup against engaged segments first.
04Can SendGrid handle multi-tenant SaaS sending?+
Yes, via subusers. Each subuser gets its own reputation, IP pool, suppression list, and stats. The team has set up multi-tenant SendGrid for SaaS platforms sending on behalf of 500+ customer accounts. Subuser provisioning is automated via API. The team also builds dashboards to monitor reputation per subuser, with auto-suspend rules for accounts that abuse the platform.
05Is SendGrid GDPR compliant?+
Yes. SendGrid offers DPA, EU data processing options, and tools to handle erasure requests. The team configures opt-out logic, suppression by category (marketing vs transactional), and explicit consent tracking. For strict data sovereignty needs, the team often pairs SendGrid with EU-hosted alternatives or uses SendGrid's EU data routing options. You still need a privacy notice on your side.
06How do you migrate to SendGrid from Mailchimp or Mailgun?+
The team has migrated 20+ accounts. Steps: domain auth setup, dedicated IP order + warmup, template port (Mailchimp templates rarely translate 1:1 to SendGrid Dynamic Templates), suppression list import, API integration swap, parallel send for 1 to 2 weeks during cutover. Total time: 3 to 6 weeks for a clean migration with minimal deliverability dip. The team always warms the new IPs in parallel with old IPs sending.
07How does SendGrid handle bounces and complaints?+
SendGrid auto-suppresses bouncing addresses (hard bounces) and spam-complaining addresses. The team configures soft bounce retry logic, complaint rate alerts (auto-pause IP at 0.1% complaints), and suppression list sync to your CRM so the same address does not get re-uploaded. SendGrid's Event Webhook exposes all events in real time; the team wires them to Slack and Metabase.
08What is a fair budget for SendGrid with an agency?+
SendGrid subscription scales with volume and features. Email API starts at $19.95/mo (40k emails) and scales to custom pricing above 1M/mo. Marketing Campaigns adds another tier. Dedicated IPs cost $80/mo each. Agency cost on top depends on scope: integration only, or full ongoing operations. Book the audit, the team scopes honestly.
09Does SendGrid integrate with HubSpot and Salesforce?+
Yes, via native integrations and API. The team builds bidirectional sync: SendGrid pushes events (delivered, opened, clicked, bounced) to HubSpot or Salesforce, and pulls back contact updates to keep suppression lists in sync. For complex flows, the team adds n8n as middleware. Most setups go live in 3 to 5 days.
10What does the first 60min audit cover?+
Review of your current SendGrid setup (or stack you want to replace), domain auth status, IP reputation, template quality, suppression hygiene, observability. You leave with 5 to 8 concrete quick wins and a rough migration roadmap if relevant. No upsell pressure. Book a slot and bring your engineering or marketing lead.
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