The best agency email tools combine campaigns, automation and CRM. We ranked the top options — including all-in-one platforms — for 2026.
How we ranked these: we weighed breadth of features, white-label and resale ability, pricing and value, ease of use, and support — focused on what agencies, IT firms and freelancers need to run and resell software in 2026.
Opsidrive is best for agencies because email campaigns and drip automation are built into a platform with CRM, WhatsApp and funnels — and it can be white-labeled and resold.
Yes — with Opsidrive your clients see your brand on emails and dashboards, using your own SMTP and domain.
Spin up your branded, all-in-one platform in minutes — apps, no credit card.
