Google has a list of IPs for their services in a JSON format available in their support section. Legitimate requests from Google should almost always come from an IP within those subnets.
https://support.google.com/a/answer/10026322 https://support.google.com/a/answer/60764 <https://support.google.com/a/answer/60764?hl=en> Kind regards, Peter Potvin On Thu, Feb 29, 2024 at 16:17 <b...@theworld.com> wrote: > > Occasionally one of our log analyzers will block gmail DNS requests > causing bounces when gmail claims our domain(s) are not authenticated, > they can't get to our SPF etc. > > I'd like to whitelist them but does anyone know the list of IP blocks > I need? > > -- > -Barry Shein > > Software Tool & Die | b...@theworld.com | > http://www.TheWorld.com > Purveyors to the Trade | Voice: +1 617-STD-WRLD | 800-THE-WRLD > The World: Since 1989 | A Public Information Utility | *oo* >