Spam Resource: Tucows / OpenSRS Infrastructure Changes

Al Iverson just issued a new brilliant story on Spam Resource:

Per notification on the Mailop mailing list on November 24, 2021, “Tucows / OpenSRS is executing an upgrade that will result in new SMTP outbound IP addresses being used within the next couple weeks.All outbound email for regular and “filter-only” delivery:64.98.42.0/2464.99.140.1/24216.40.44.0/24All outbound forward and autoresponder traffic:64.98.36.17/32 forward.b.hostedemail.com64.99.140.10/32 fo-relay.a.hostedemail.com216.40.42.17/32 forward.a.hostedemail.com”My understanding is that these changes will apply to any domains with MX records pointing at *.hostedemail.com infrastructure. These are email customers of Tucows/OpenSRS as covered here.

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