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Send 3,000 cold emails a month without burning your domain
How to reach 3,000 cold emails a month with Galactic Outreach while keeping your sending domain's reputation: separate outreach domains, a slow ramp set up once as one dated schedule per week, three sending addresses, and the limits that stop a send before a provider does.
By Joan Gumban · Last updated
The short answer
Nothing makes cold email ban-proof. A domain or an account is lost for one of three reasons: volume that grew too fast, bounces and spam complaints, or breaking the email provider's own rules. This guide keeps all three in check, and it takes about two months to reach 3,000 a month safely.
3,000 a month is about 140 emails each weekday. Check and send puts the ceiling for one sending address at 50 a day, so the plan is three addresses at about 45 a day each, not one address sending 140.
1. Know your provider's rules first
Volume is not what decides this. Resend, Amazon SES, Mailgun and SendGrid each restrict cold outreach or scraped lists in their own terms, and a provider can close an account at any volume. A Google Workspace or Microsoft 365 mailbox is the closest fit for one-to-one email, but Galactic sends at most 50 a day from one, and its provider's policy still forbids unsolicited mass email.
Email providers quotes and links each provider's rules. Read the one you use before you plan any volume.
- A sending service
- Read the rules, then send from addresses on your outreach domain. Each template can carry its own From address, so one campaign can send from three.
- Example: Resend, Amazon SES, Mailgun or SendGrid
- Your own mailbox
- At most 50 a day from each, and one provider per campaign, so 3,000 a month means three mailboxes on separate domains, and three campaigns.
- Example: Google Workspace or Microsoft 365
2. Send from separate outreach domains
Never send cold email from the domain your company's own mail runs on. A suspension or a poor reputation can take that mail with it.
- A separate domain, such as tryyourbrand.com, keeps your main brand fully apart. A subdomain, such as mail.yourbrand.com, still shares some reputation with it.
- Two or three outreach domains spread the risk further: one address per domain, about 45 a day each.
- SPF, DKIM and DMARC on every sending domain. The safety checks block a send without SPF or DMARC, and flag a missing DKIM key.
- An MX record, so replies arrive. The “Replies reach you” check blocks without one.
3. Ramp up slowly
A new domain has no reputation yet, and mailbox providers judge it by how fast its volume grows. Each address follows the weekly steps in Check and send, and only moves up after a clean week.
| Week | Per address per day | All three per weekday | A month at that rate |
|---|---|---|---|
| 1 | 10–20 | 30–60 | 660–1,320 |
| 2 | 20–30 | 60–90 | 1,320–1,980 |
| 3 | 30–40 | 90–120 | 1,980–2,640 |
| 4 | 40–50 | 120–150 | 2,640–3,300 |
| 5 onward | 45, at most 50 | about 140 | about 3,000 |
4. Set it up in Galactic
With a sending service, one campaign can do the whole plan. With mailboxes, set up the same thing once per mailbox, in three campaigns.
- Three templates
- One per sending address, each with its From address set to that address, and with copy written for the industry it goes to.
- Example: Dentists intro, from anna@tryyourbrand.com
- Three send schedules
- One per template, at the same time or spread through the morning, with Most per run set to that address's step in the ramp. Due at the same time, they go out one after the other.
- Example: 09:00 weekdays, Dentists intro, at most 20 per run
- A date range per week
- Pick each week's first and last day on the schedule's calendar, so it sends that week only. Save Week 1, then press Duplicate: the copy moves on a week and counts its name up, and you raise Most per run to the next step. The whole ramp is set up once, on day one.
- Example: Week 1, Oct 5 to Oct 9, at most 15 · Week 2, Oct 12 to Oct 16, at most 25
- Sending hours
- Set for you, so emails arrive during the recipient's working day, wherever they are. A schedule decides when a run starts; each lead still only gets mail inside their own hours.
- Example: 08:00 to 18:00 where they are
- The webhook
- Connect your provider's webhook, and the Bounces and complaints check stops sending before you reach the provider's own line. Without it, the check cannot measure.
- Example: Resend: 0.08% complaints, 4% bounces
5. Keep bounces and complaints low
The ramp only holds while the list is clean and the email reads like it came from a person.
- Hard bounces under 2% and spam complaints under 0.1%, the two rates Emails sent shows. Never let complaints reach 0.3%, the line Gmail's sender guidelines draw.
- Let the safety checks hold back duplicates, opt-outs, addresses with no mail server and contacts in consent-required countries. Never work around a HOLD.
- From a mailbox, Galactic cannot see bounces, which arrive in the mailbox. Add each bounced address to the do-not-contact list yourself.
- A short email from a named person, about something specific to the business, with one link at most and no attachments.
- An unsubscribe link in every email, honoured at once. Galactic adds it, with the one-click headers, and honours it automatically.
- Watch Google Postmaster Tools for each sending domain once it has enough volume to report.
6. When something goes wrong
Drop back one step for a week on any address whose bounces or complaints go over the line, and pause its schedule if a provider warns you. A held send costs a day; a closed account costs the domain.
If a mailbox is suspended, Workspace suspensions explains how to tell a temporary sending limit from a suspension, and whether it can be restored.