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Are You Receiving eMail Communications from DDI?

  • Updated

Communication is vitally important. DDI System strives to communicate often with our clients so they can always be kept abreast of software upgrades, user conferences, trainings, free webinars, new offerings and other important items.

If you are not receiving our emails, please see the list of potential issues with resolutions below.

  1. Spam or Junk Filter - It is possible that our emails may have inadvertently landed in your spam / junk folder. Our emails are always sent from ddisys.com so you can whitelist or add that domain to your safe sender list to prevent that from happening.

    Please consider whitelisting each of these to maximize your deliverability rate:

    167.89.107.125 167.89.107.127 167.89.107.129 167.89.107.136
    192.254.127.100 192.254.127.101 192.254.127.102 192.254.127.103
    192.254.127.104 192.254.127.105 192.254.127.106 192.254.127.107
    192.254.127.108 192.254.127.109 192.254.127.110 192.254.127.111
    192.254.127.112 192.254.127.113 192.254.127.114  192.254.127.115
    192.254.127.116 192.254.127.117 192.254.127.118 192.254.127.119
    192.254.127.120 192.254.127.121 192.254.127.122 192.254.127.123
    192.254.127.124 192.254.127.125 192.254.127.126 192.254.127.127
    192.254.127.127 192.254.127.96 192.254.127.97 192.254.127.98
    192.254.127.99 198.37.146.111 198.37.146.112 198.37.146.113
    198.37.146.114 34.216.216.111 34.216.216.112 34.216.216.113
    34.216.216.114 34.216.216.126 34.216.216.127 34.216.216.128
    34.216.216.129 50.31.44.111 50.31.57.60 52.200.89.15
    52.55.208.120 54.174.52.102 54.174.52.103 54.174.52.104
    54.174.52.105 54.174.52.146 54.174.52.147 54.174.52.148
    54.174.52.190 54.174.52.191 54.174.52.192 54.174.52.234
    54.174.52.235 54.174.52.236 54.174.52.237 54.174.52.39
    54.174.52.5 54.174.59.0 54.174.59.1  
  2. Unsubscribed - If you have unsubscribed to our emails, please be advised that you will receive absolutely no communication of any kind from us. As a result, you will not be alerted to software updates and other info that may be critical to your business. If you wish to re-subscribe to our email distribution list, please click here and follow the instructions on that page.
  3. Incorrect Email Address- It is possible that your email address may have changed since you were added to our system. If you are not receiving DDI System emails, you may want to verify that the address we have on file is correct.


As always, thank you for being a loyal DDI System customer. 

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