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External email delivery failed after renewing exchange self signed certificate
Recently our exchange server 2016 self signed certificate about expired on November. We renew the certificate on November before it expired and everything was good until last couple day. Out of the b...
- after checking couple of thing, realize it was the mail security gateway certificated expired. upon renewing the cert, all went well
after checking couple of thing, realize it was the mail security gateway certificated expired. upon renewing the cert, all went well