What IP addresses does the application use to send email so I can ask to have them whitelisted?

If you’re having problems with certain recipients failing to receive your email campaigns, you could ask their administrator to whitelist the below IP sending ranges. This will ensure emails are allowed through their message filtering and arrive in your recipient’s inbox.

EU (region 1)

  • 94.143.105.1 - 94.143.105.255
  • 94.143.106.1 - 94.143.106.255
  • 94.143.107.1 - 94.143.107.255
  • 94.143.108.1 - 94.143.108.255

US (region 2)

  • 212.1.218.1 – 212.1.218.255
  • 212.1.219.1 – 212.1.219.255

Here are some further IPs that may also need to be considered.

External dynamic content for EU (region 1)

  • 52.174.92.164

External dynamic content for US (region 2)

  • 104.208.235.109

CRM connector for EU (region 1)

  • 23.101.50.109
  • 23.102.11.18
  • 23.102.18.218
  • 40.85.101.127
  • 40.127.207.8

CRM connector for US (region 2)

  • 13.68.20.229
  • 13.68.22.210
  • 13.68.30.243
  • 40.79.40.67
  • 40.84.63.147

In addition, here are some IP addresses and DNS names that you may just want to be aware of, as it's possible that you could see them get flagged when performing a health check on any custom from addresses (CFAs). However, don't be concerned - these IPs relate to incoming email only and don't have a negative effect on your sends.

Read more in Why is my custom from address (CFA) being flagged on Spamhaus' PBL?

Bounce and reply handling for EU (region 1)

  • Name: smtp-in-1.dotmailer.co.uk/r1-smtp-in-1.dotmailer.co.uk
    13.95.236.86
  • Name: smtp-in-2.dotmailer.co.uk/r1-smtp-in-2.dotmailer.co.uk
    52.174.157.26

Bounce and reply handling for US (region 2)

  • Name: r2-smtp-in-1.dotmailer.com
    137.116.86.81
  • Name: r2-smtp-in-2.dotmailer.com
    104.209.221.237
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Comments

  • Avatar

    Would this mean that all dotMailer communications (from any user) would then be allowed through their filters? Our clients would only like  communications from us to get through their filters, but to block any other dotMailer emails. Is there a way to do this please?

  • Avatar

    Hi Liz,

    You're correct - whitelisting the ranges above would mean all dotmailer communications from any user would be allowed through your clients' filters. A solution that may suit your needs, however, would be to purchase your own dedicated IP address from us. Please speak to your account manager if you're interested in doing this. 

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