The 'smtp-sending-ips' warning list is missing Aruba IP addresses. Below are some IP addresses belonging to the ASN 'AS31034 aruba spa':
- 62.149.156.58
- 62.149.156.103
- 62.149.158.219
- 62.149.156.73
- 62.149.156.88
- 62.149.158.118
- 62.149.156.44
- 62.149.158.220
- 62.149.158.103
- 62.149.158.219
- 62.149.158.148
- 62.149.156.163
- 62.149.156.73
- 62.149.155.150
- 62.149.156.43
- 62.149.155.150
- 62.149.158.219
- 62.149.158.133
- 62.149.158.104
- 62.149.155.103
- 62.149.156.43
- 62.149.158.118
It would be useful to add the IP ranges belonging to Aruba to the 'smtp-sending-ips' warning list.