Oh, and forgot to mention..
Might consider SWIP or 'rwhois' entries to show these networks are for
Tucows email servers, and not part of the other networks that may have
different use cases..
eg.
NetRange: 64.98.0.0 - 64.99.255.255
CIDR: 64.98.0.0/15
NetName: TUCOWS-BLK2
NetHandle: NET-64-98-0-0-1
Parent: NET64 (NET-64-0-0-0-0)
NetType: Direct Allocation
OriginAS: AS15348, AS32491, AS394308
Organization: Tucows.com Co. (TUCOW)
RegDate: 2000-05-18
Updated: 2015-08-06
Ref: https://rdap.arin.net/registry/ip/64.98.0.0
A clear SWIP for the new ranges will save you grief.. shows that they
started being used for the new purpose on a specific date..
On 2021-11-23 3:47 p.m., Luis E. Muñoz via mailop wrote:
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:
64.98.42.0/24
64.99.140.1/24
216.40.44.0/24
*
All outbound forward and autoresponder traffic:
64.98.36.17/32 forward.b.hostedemail.com
64.99.140.10/32 fo-relay.a.hostedemail.com
216.40.42.17/32 forward.a.hostedemail.com
I hope this information is helpful for anybody doing any special
processing for these mail flows.
Best regards
-lem
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