A number of users have hit an issue where their CRM Mail Delivery methods won’t send out emails. This can be a difficult one to troubleshoot because often it’s a server setting which hosting companies don’t want to talk about (because spammers may use their email service, they often lock things down).
If you’re using GoDaddy & Office365, this is likely your experience, (Add the right SMTP details, but get “your server cannot reach the mail server” type errors.)
First up, try this solution from the GoDaddy forums:
… if you’re still struggling to get mail to send from Zero BS CRM, and you can’t find an answer on this knowledgebase or on this SMTP CRM guide, please open a ticket and we’ll help you out.