Gmail Sending Setup Checklist Before Your First Cold Email

Your first cold campaign from a fresh Gmail account can land in spam, bounce, or get the account paused, and none of that is about your copy. It is usually setup. Work through this checklist once per sending account, tick each box, and you remove the avoidable problems before they cost you a domain.

1. Choose what you send from

• Use Google Workspace on your own domain, not a free @gmail.com address. A business domain lets you set authentication records, and it looks like a real company to the recipient.
• Consider a separate sending domain (for example yourbrand-mail.com or getyourbrand.com) so problems with outreach do not affect the domain your invoices and client email go out on. Point it to your main website.
• Create a real person's mailbox, like anna@ rather than sales@ or info@. People reply to people.
• Decide how many mailboxes you need. Divide the daily volume you want by a cautious per-mailbox number. See email sending limits for how Google's limits work and why staying well under them is wise.

2. Set up domain authentication

Do this in your domain registrar's DNS settings. Records can take a few hours to update.

• SPF: one TXT record on the root of the domain that includes Google, for example v=spf1 include:_spf.google.com ~all. Only one SPF record per domain. If you also send through another service, merge them into that single record.
• DKIM: in Google Admin, go to Apps > Google Workspace > Gmail > Authenticate email. Generate a 2048-bit key, add the TXT record it gives you, then click Start authentication.
• DMARC: a TXT record at _dmarc.yourdomain.com. A safe start is v=DMARC1; p=none; rua=mailto:you@yourdomain.com. You can tighten the policy to quarantine later once you see reports are clean.
• MX records point to Google, so replies actually arrive.
• Test it: send an email to another account you own, open it, choose Show original, and check that SPF, DKIM and DMARC all say PASS.

3. Make the account look like a real person

• Full name set on the account (first and last).
• Profile photo uploaded.
• Plain signature: name, role, company, website, phone. Skip big images and lots of links.
• The website in your signature loads and matches the domain you send from.
• Two-step verification turned on, so the account cannot be locked for security reasons.

Paste-ready signature:

Anna Lee
Founder, Brightline Studio
brightlinestudio.com | +1 555 0100

4. Warm up slowly

A new mailbox that suddenly sends hundreds of cold emails looks like a spammer. Build history first.

• Week 1: use the account normally. Email colleagues, friends and existing contacts and get replies.
• Week 2: start cold sending at a small daily number, as a rule of thumb around 10 to 20 per mailbox.
• Weeks 3 to 4: raise gradually only if bounces stay low and replies come in.
• Keep a steady pace. Spread sends across the working day instead of firing everything at 9am.

These numbers are rules of thumb, not Google figures. Your safe pace depends on list quality and how recipients respond.

5. Clean the list before it touches the account

Bounces hurt a new mailbox faster than almost anything else.

• Run email verification on every list and remove invalid addresses.
• Remove duplicates and anyone who has unsubscribed or asked not to be contacted.
• Make sure every row has the fields your template uses, such as business name, first name and city.
• Target businesses that genuinely fit your offer. A relevant list gets replies, which helps your sending reputation.

6. Write a first email that is safe to send

• Plain text or a simple layout, one link at most, no attachments.
• A clear unsubscribe option and your business postal address. Check the rules for your country and your recipients' countries; the CAN-SPAM checklist for small teams covers the US basics. This is not legal advice.
• Short subject line that reads like a normal email. Worrying about single "spam words" matters less than relevance, as explained in the cold email spam words myth.

Paste-ready first email:

Subject: Question about {{params.name}}

Hi {{params.firstname}},

I was looking at {{params.website}} and had a quick idea for {{params.name}} that could help you get more {{params.category}} customers in {{params.city}}.

Would it be useful if I sent over two or three specific suggestions? No call needed.

Thanks,
Anna

Paste-ready follow-up (send 3 days later, only if no reply):

Subject: Re: Question about {{params.name}}

Hi {{params.firstname}},

Just bringing this back up in case it got buried. Happy to send those ideas for {{params.name}} if helpful, or I'll leave it here.

Anna

7. Connect, test and launch

• Connect the mailbox to your sending tool. In GetClient you connect your own Gmail accounts, set send-day limits by weekday, and an unsubscribe link with a per-recipient signed URL is added so unsubscribed addresses are skipped automatically.
• Preview every step with a real lead to confirm merge tags fill in. A blank or broken tag is the most visible mistake you can make.
• Send a test to yourself on Gmail and on another provider. Check it lands in the inbox and the unsubscribe link works.
• Run the full email campaign QA checklist before the first real send.
• Prepare reply templates so you answer quickly; see reply handling templates.

8. Watch the first two weeks

• Check bounces daily. If they climb, pause and re-verify the list.
• Read every reply, including "not interested", and honour removal requests at once.
• Track sends, opens, replies and bounces per mailbox with the campaign metrics tracker.
• Only increase volume when the numbers are steady.

If you want the lead list, verification and Gmail sending in one place, GetClient's free 100 credits are enough to test the whole flow. Plans are on the pricing page.