You could try Agile CRM for lead generation as it provides:
Email marketing 
Web forms
Landing pages
Web popups
Exit-intent popups
This CRM has email marketing as well as CRM capabilities to handle leads end-to-end (lead generation -> Lead scoring ->, Lead Nurturing -> Lead Segmentation … (more)

Email marketing is the most preferred communication channel for 59% of B2B marketers – Source: Forbes.
Some excellent email marketing tools:
* Mailchimp
* Agile CRM’s email marketing feature.
I suggest you try Agile CRM’s email marketing for lead generation as it is has … (more)

Agile CRM email marketing feature is one of the best. It provides an easy-to-use, drag and drop email builder to create and send professional emails and newsletters. Additionally, it provides:

Prepackaged & Custom Templates
Personalization
Email Lead Scoring
Tracking and Metrics
Email A/B Testing
Drag-and-Drop Email … (more)