I have an email server on Linode.com with the following specs:
- Ubuntu 14.04
- Apache & MySQL
- Postfix, Dovecot, Spamassassin, Postgrey, RoundCube, sievemail components.
Problem: Everything works fine but when I try to send bulk email to more than 15 recipients, it gives the error "Too many recipients". I am using Microsoft Outlook 2010 to send and receive emails and I see this error in MS Outlook.
- What could be the possible issue and how to solve it?
- Is there any limit set in Postfix which is not allowing to send bulk email? How to uplift that limit?