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    via Stack Overflow by Strelok

    Import the server certificate into your truststore.

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via GitHub by vlahakis
, 1 year ago Received fatal alert: certificate_unknown Received fatal alert: certificate_unknown	at	at	at	at	at	at	at	at com.notnoop.apns.internal.ApnsConnectionImpl$2.readPacket(	at com.notnoop.apns.internal.ApnsConnectionImpl$	at