Send email marketing campaigns from inside your Gmail account and get the highest response rates you've ever seen. Even better, set follow-up emails to send automatically to non-responders.
Our email verification service validates your addresses before you send to your list. Email addresses are tested for syntax and accounts are tested for validity in real-time over SMTP. We also use AI to figure out first names from just email addresses.
If you're sending cold emails you likely know that warming up a domain and Gmail account is an important step to maximizing Gmail's sending limits and increasing deliverability.
Here is a completely free warm-up system that works with any Gmail account.
With ColdSMTP, the new sending server exclusively for cold outreach from GMass, you can now send unlimited cold emails from 1 β yes, just 1 β Gmail account. All without warm-up and without the risk of Google shutting you down.
