postfix -> mailu goes through external_services network #222
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Reference: data.coop/ansible#222
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When our postfix (smtp.data.coop) tries to connect to mailu (mail.data.coop) it connects to our external ip as expected (according to its logs). However, mailu sees the sender IP being the gateway of our
external_services
network. This breaks SPF! And I don't understand why.Hacky fix: Add a static subnet to the
external_services
network and add that IP range to the SPF record.- name: Set up external services network
docker_network:
name: external_services