SMTP Error Code: 221 5.1.5

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Lookup for "221 5.1.5"

Permanent Error - This status code indicates a permanent issue and is unlikely to resolve itself. You should contact the Email Service Provider.

Basic Status Code Details (221)

Service closing transmission channel

Enhanced Status Code Details (5.1.5)

Destination address valid

This mailbox address as specified was valid. This status code should be used for positive delivery reports.