As a recruiter, you might have to send emails to multiple candidates or vendors on a single day.  With wisestep emails integration, it is possible to send emails in a single click. You can also customize some fields using templates. 


You however need to use your emails prudently since each Email Service Provider (ESP) applies limits depending on your Plan (Free or Paid)  .  Also sending emails prudently and when necessary helps you stay within limits and not spam other users. 


The Table below lists the limits for some popular ESPs. If your ESP is not one of these, you should contact their support or look up their help section to check your Limits. 


Email Sending Provider
  Hourly LimitDaily Limit
 Gmail / G Suite Basic  20 / Hour 100 via SMTP, 500 by Browser
 GSuite Premium   No Limit Provided 2000 / day . 500 in Trial
 Office 365  30 / Hour 10,000 Recipients
 GoDaddy Max 300 / Hour250 to 500 recipients
  Rackspace
 10,000 recipients
  BlueHost 150 emails / Hour  Not Clear
 Dream Host 25 emails per 15 Minutes Not Mentioned.  100 Recepients per Message
 Hostgator 500 emails / Hour 12000 emails
 Yahoo Mail Plus  100 / Hour  500 emails



Source: https://snov.io/blog/email-sending-limits-of-email-service-providers/

https://debounce.io/blog/articles/email-sending-limits-of-different-hosts/


1. What happens if I exceed my Daily our Hourly Limits


A:  Your email  account might be temporarily blocked by your ESP. 



2. So, What happens if my account is blocked ? 


A: For popular Services like  GMail , O365 the unblocking us automatic and it might take 24 hours or more. For other providers, you might have to contact their Customer Service to resolve the issue.