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fix(localhost-loop): fix outbound loop when target mx is localhost #2952

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Sep 1, 2021
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6 changes: 4 additions & 2 deletions outbound/mx_lookup.js
Original file line number Diff line number Diff line change
Expand Up @@ -33,8 +33,10 @@ exports.lookup_mx = function lookup_mx (domain, cb) {
}
else if (addresses && addresses.length) {
for (let i=0,l=addresses.length; i < l; i++) {
const mx = wrap_mx(addresses[i]);
mxs.push(mx);
if (!net_utils.is_local_ip(addresses[i].exchange)) {
const mx = wrap_mx(addresses[i]);
mxs.push(mx);
}
}
cb(null, mxs);
}
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