Mail sandboxΒΆ

Setting Value
IMAP Server IP or Hostname of VM (192.168.56.2)
IMAP Port 143 (without SSL/TLS)
SMTP Server IP or Hostname of VM (192.168.56.2)
SMTP Port 25 (without SSL/TLS)
Username vagrant
Password vagrant

Any outgoing email is catched by postfix and send to mailbox of vagrant user.