I do not find any guidelines regarding how to configure multiple IPs into an SPF record. So far I used (for example):
v=spf1 ip4:188.8.131.52/24 a mx ?all
But now I should add another range of IPs that are allowed, e.g.
v=spf1 ip4:184.108.40.206/24 ip4:220.127.116.11/24 a mx ?all
Is the second syntax correct? Thanks.
The open SPF wizard from the previous answer is no longer available, neither the one from Microsoft.