Category Archives: VPS

Slow to receive emails? – Disable Postfix Greylisting

Once you install iRedMail on your own VPS you might encounter issues by mails not being received on time or not being received at all. In my case I just had to disable the Postfix Policyd greylisting. I have seen many reject error messages in /var/www/mail.log :

Jun 11 18:13:55 ProcessingEngine postfix/smtpd[13562]: connect from gateway01.websitewelcome.com[69.41.242.19]
Jun 11 18:13:56 ProcessingEngine postfix-policyd: rcpt=16, greylist=abuse, host=69.41.242.19 (gateway01.websitewelcome.com), from=ORIGIN@EMAILREMOVED.COM, to=DESTINATION@EMAILREMOVED.COM, size=0
Jun 11 18:13:56 ProcessingEngine postfix/smtpd[13562]: NOQUEUE: reject: RCPT from gateway01.websitewelcome.com[69.41.242.19]: 450 4.7.1 : Re cipient address rejected: Policy Rejection- Please try later.; from= to= proto=SMTP helo=
Jun 11 18:13:56 ProcessingEngine postfix/smtpd[13562]: disconnect from gateway01.websitewelcome.com[69.41.242.19]

After a bit of a research I have figured that the postfix-policyd configuration file contains the entry where you can disable greylisting. Once I have done that I have been able to send and receive mails instantly.

The config file on my ubuntu 10.4.2 LTS server is located at:

/etc/postfix-policyd.conf

Just set the GREYLISTING paramter to 0

#####################################################################
#
# enable greylisting                                  default: on
#
#   whether greylisting should be enabled or disabled.
#
#                                                     1=on  0=off
GREYLISTING=0