Bitrix24 is the ONLY free CRM with email marketing. Most 'free' CRM systems aren't really free – they either limit the number of contacts you can have or how many emails you can send on a monthly basis or so on. The only limits for the free Bitrix24 plan are 12 users and 5GB document storage. Everything else – contacts, deals, quotes, invoices, emails, templates – is unlimited. You even get free email server, if you need it.
If you want to use our built in CRM email integrations via Bitrix24 Marketplace, you can. This gives you bulk mailing, email campaigns, email tracking (open rates, click rates, etc), HTML templates, mail merge and much more.
If you are interested in free built-in Bitrix24 CRM email marketing tools, check out this article. With Bitrix24 send & save, you send emails from CRM, receive them inside CRM and automatically create leads inside CRM when you receive a message from a person who's email address is not in your database yet. You can also use Bitrix24 business process designer for email automation – autoresponders, drip marketing, etc.
Bitrix24 CRM manual is available here.
If you are interested in buying self-hosted editions of Bitrix24, which come with API, CMS and source code, can be easily customized and integrated with other tools, please download a trial version here.