Help me write an email to announce a migration

Hello everyone,

As most of you already know, DPS team will migrate Euclid/BFC layers from SwitchBuilder(SB) to ProvisioningOrchestrator(PO). During the past few months we have tested the workflow in test regions and done pilot in dub.
As prerequisite for the migration PO needs mgmt IP info prefilled into the released config (the same way onefabric and finalcat are already working). 
In order to have the IP into the released config we have modified every single site we needed to move to PO, enabling the flag “mgmt_interface_config_enabled: true”. Thanks to cstar work we can now enable this flag everywhere and the released config will support both IP coming from option82 and the overlay in case the latter is not present.
To progress with the rollout from now on we will enable this flag at recipe level for all Euclid/BFC topologies. 
BFC:
-	bfc-32_12_8t  https://code.amazon.com/packages/FabricBuilder/blobs/mainline/--/src/fabricbuilder/recipes/bfc-32_12_8t.yaml
-	bfc-32_12_8t_8w  https://code.amazon.com/packages/FabricBuilder/blobs/mainline/--/src/fabricbuilder/recipes/bfc-32_12_8t_8w.yaml
-	bfc-32_2_0 https://code.amazon.com/packages/FabricBuilder/blobs/mainline/--/src/fabricbuilder/recipes/bfc-32_2_0.yaml
-	bfc-8_12_8t  https://code.amazon.com/packages/FabricBuilder/blobs/mainline/--/src/fabricbuilder/recipes/bfc-8_12_8t.yaml
-	bfc-8_12_8t_8w  https://code.amazon.com/packages/FabricBuilder/blobs/mainline/--/src/fabricbuilder/recipes/bfc-8_12_8t_8w.yaml
-	bfc-8_2_0 https://code.amazon.com/packages/FabricBuilder/blobs/mainline/--/src/fabricbuilder/recipes/bfc-8_2_0.yaml
-	bfc_1_0 https://code.amazon.com/packages/FabricBuilder/blobs/mainline/--/src/fabricbuilder/recipes/bfc_1_0.yaml
Euclid:
-	euclid-104_12_8t  https://code.amazon.com/packages/FabricBuilder/blobs/mainline/--/src/fabricbuilder/recipes/euclid-104_12_8t.yaml
-	euclid-104_12_8t_8w. https://code.amazon.com/packages/FabricBuilder/blobs/mainline/--/src/fabricbuilder/recipes/euclid-104_12_8t_8w.yaml
-	euclid-26_12_8t  https://code.amazon.com/packages/FabricBuilder/blobs/mainline/--/src/fabricbuilder/recipes/euclid-26_12_8t.yaml
-	euclid-26_12_8t_8w https://code.amazon.com/packages/FabricBuilder/blobs/mainline/--/src/fabricbuilder/recipes/euclid-26_12_8t_8w.yaml
-	euclid_1_0 https://code.amazon.com/packages/FabricBuilder/blobs/mainline/--/src/fabricbuilder/recipes/euclid_1_0.yaml
-	euclid_1_1 https://code.amazon.com/packages/FabricBuilder/blobs/mainline/--/src/fabricbuilder/recipes/euclid_1_1.yaml
-	euclid_1_5 https://code.amazon.com/packages/FabricBuilder/blobs/mainline/--/src/fabricbuilder/recipes/euclid_1_5.yaml
-	euclid_1_x  https://code.amazon.com/packages/FabricBuilder/blobs/mainline/--/src/fabricbuilder/recipes/euclid_1_x.yaml
-	euclid_2_0 https://code.amazon.com/packages/FabricBuilder/blobs/mainline/--/src/fabricbuilder/recipes/euclid_2_0.yaml

The feature is controlled at regional level by a configuration flag in fabric builder https://code.amazon.com/packages/FabricBuilder/blobs/ad9224a925a65eb7b899f98ac81e802464724c6f/--/configuration/brazil-config/app/FabricBuilder.cfg#L211

After every region addition to the previous file, fabric builder needs to be deployed and a run of fabby for the entire region is required.