What good cold email software does
- Sends from many inboxes: spreading volume keeps each inbox under safe limits (20 to 50 a day).
- Warms up new inboxes: builds a reputation before you send at volume.
- Follows up in the same thread: most replies come from the second or third email.
- Stops when someone replies: nobody wants a follow-up after they answered.
- Cleans your list: bad addresses cause bounces, and bounces hurt your domain.
- Handles replies: sorts interested leads from "not now" and gets the interested ones booked fast.
The setup that protects your domain
- Use a separate domain for outreach (for example getyourbrand.com instead of yourbrand.com).
- Set up SPF, DKIM and DMARC on it.
- Create 2 to 3 inboxes per domain and warm each one for 2 to 3 weeks.
- Send 20 to 40 emails per inbox per day, plain text, few links.
What it should cost
Most tools charge by contacts and emails per month, not by inbox. In 2026 entry plans sit between about $29 and $47 a month (Asendify Outbound $29, Smartlead $39, Instantly $47), and mid plans between $79 and $99.
Questions to ask before you buy
- Is warm-up included or extra?
- Are AI replies included, or paid per reply?
- Can you see every reply in one inbox?
- What happens to your data if you cancel?
Try Asendify Outbound free for 14 days
Unlimited inboxes, warm-up and the AI reply agent on every plan, from $29/month.
Questions
What is cold email software?
Software that sends personalised emails to people who haven't heard from you yet, spreads sending across several inboxes, follows up automatically and tracks replies.
How many cold emails can one inbox send a day?
A safe range for a warmed-up inbox is about 20 to 50 a day. To send more, add more inboxes rather than pushing one inbox harder.
Do I need warm-up?
Yes for new inboxes. Warm-up builds a sending history so your emails land in the inbox instead of spam.