SoftLayer blocking TCP port 25 (SMTP)

As of February 1, 2016, SoftLayer began blocking all outbound connections through TCP port 25 (SMTP). This will affect all SoftLayer datacenter locations. This change will prevent all connections for mail servers through the default outgoing mail port 25. Mail servers located in the SoftLayer locations should still be able to receive email on ... Read More »

6th Feb 2016

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