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Here you will find a list of the IP addresses via which the IONOS mail system sends emails.
IP addresses of the servers used by IONOS customers to send emails:
Shared Server Outbound IPs
| IP Address | Name |
|---|---|
| 217.72.192.73 | mout.kundenserver.de |
| 217.72.192.74 | mout.kundenserver.de |
| 217.72.192.75 | mout.kundenserver.de |
| 212.227.17.10 | mout.kundenserver.de |
| 212.227.17.13 | mout.kundenserver.de |
| 212.227.17.24 | mout.kundenserver.de |
| 212.227.126.130 | mout.kundenserver.de |
| 212.227.126.131 | mout.kundenserver.de |
| 212.227.126.133 | mout.kundenserver.de |
| 212.227.126.134 | mout.kundenserver.de |
| 212.227.126.135 | mout.kundenserver.de |
| 212.227.126.187 | mout.kundenserver.de |
| 74.208.4.194 | mout.perfora.net |
| 74.208.4.195 | mout.perfora.net |
| 74.208.4.196 | mout.perfora.net |
| 74.208.4.197 | mout.perfora.net |
Forwarding with a Spam Evaluation Entered in the Header:
| IP Address | Name |
|---|---|
| 82.165.159.5 | mout-xforward.kundenserver.de |
| 82.165.159.6 | mout-xforward.kundenserver.de |
| 82.165.159.7 | mout-xforward.kundenserver.de |
| 82.165.159.8 | mout-xforward.kundenserver.de |
| 82.165.159.9 | mout-xforward.kundenserver.de |
| 82.165.159.10 | mout-xforward.kundenserver.de |
| 82.165.159.36 | mout-xforward.kundenserver.de |
| 82.165.159.37 | mout-xforward.kundenserver.de |
| 82.165.159.38 | mout-xforward.kundenserver.de |
| 82.165.159.39 | mout-xforward.kundenserver.de |
| 82.165.159.43 | mout-xforward.kundenserver.de |
| 82.165.159.44 | mout-xforward.kundenserver.de |
| 82.165.159.132 | mout-xforward.perfora.net |
| 82.165.159.133 | mout-xforward.perfora.net |
| 82.165.159.134 | mout-xforward.perfora.net |
Forwarding and Mailer Daemons:
| IP Address | Name |
|---|---|
| 217.72.192.100 | mout-bounce.kundenserver.de |
| 217.72.192.101 | mout-bounce.kundenserver.de |
| 217.72.192.102 | mout-bounce.kundenserver.de |
| 212.227.15.22 | mout-bounce.kundenserver.de |
| 212.227.15.31 | mout-bounce.kundenserver.de |
| 212.227.15.32 | mout-bounce.kundenserver.de |
| 212.227.15.56 | mout-bounce.kundenserver.de |
| 212.227.15.57 | mout-bounce.kundenserver.de |
| 212.227.15.58 | mout-bounce.kundenserver.de |
| 212.227.17.3 | mout-bounce.kundenserver.de |
| 212.227.17.14 | mout-bounce.kundenserver.de |
| 212.227.17.25 | mout-bounce.kundenserver.de |
| 74.208.4.198 | mout-bounce.perfora.net |
| 74.208.4.204 | mout-bounce.perfora.net |
| 74.208.4.205 | mout-bounce.perfora.net |
IP addresses of servers used to send IONOS newsletters, invoices, and employee e-mails:
Servers for Sending IONOS Newsletters:
| IP Address | Name |
|---|---|
| 212.227.15.53 | mout-csbulk.1and1.com |
| 212.227.15.47 | mout-csbulk.1and1.com |
| 212.227.126.224 | mout-csbulk.1and1.com |
| 212.227.126.225 | mout-csbulk.1and1.com |
| 212.227.126.226 | mout-csbulk.1and1.com |
| 212.227.126.227 | mout-csbulk.1and1.com |
| 212.227.126.220 | mbulk.1and1.com |
| 212.227.126.221 | mbulk.1and1.com |
| 212.227.126.222 | mbulk.1and1.com |
| 212.227.126.223 | mbulk.1and1.com |
Servers That Send Invoices and Support E-mails:
| IP Address | Name |
|---|---|
| 212.227.15.50 | mout-cscorp.1and1.com |
| 212.227.15.52 | mout-cscorp.1and1.com |
Internal Company Servers:
| IP Address | Name |
|---|---|
| 212.227.15.7 | moint.1and1.com |
| 212.227.15.8 | moint.1and1.com |
| 212.227.17.7 | moint.1and1.com |
| 212.227.17.27 | moint.1and1.com |