user86833: Many valid transactions are not broadcastable by default in bitcoin core to avoid attacks that could harm the network. These would rarely be found in a node's mempool but could, however, be found in blocks because they don't violate any consensus rules.
What transactions fit these criteria?

user86833: The following transactions are not broadcastable with the default bitcoin core configuration but could be found in new mined blocks:

Transactions whose fee is smaller than 1 sat/vB (and RBF bumps that increment less than 1 sat/B).
Transactions with size greater than 100 vkB (and smaller than ~ 1 vMB)
Transactions with outputs amounts smaller than 566 satoshis (dust limit)
Transactions that are considered non-standard (I will try to list them because this is a very broad category)
Transactions with scriptSigs larger than 1650 B (and smaller than 10kB)
Transactions with more than one OP_RETURN output or an OP_RETURN output bigger than 83 B.
Transactions with scriptPuKeys of bare n-of-m multisigs, where m > 3.
Transactions with scriptPubKeys or ScriptSigs that make the transaction malleable.


86833: <p>Many valid transactions are not broadcastable by default in bitcoin core to avoid attacks that could harm the network. These would rarely be found in a node's mempool but could, however, be found in blocks because they don't violate any consensus rules.</p>
<p>What transactions fit these criteria?</p>
 86833: <p>The following transactions are not broadcastable with the default bitcoin core configuration but could be found in new mined blocks:</p>
<ul>
<li>Transactions whose fee is smaller than 1 sat/vB (and RBF bumps that increment less than 1 sat/B).</li>
<li>Transactions with size greater than 100 vkB (and smaller than ~ 1 vMB)</li>
<li>Transactions with outputs amounts smaller than 566 satoshis (dust limit)</li>
<li>Transactions that are considered non-standard (I will try to list them because this is a very broad category)</li>
<li>Transactions with scriptSigs larger than 1650 B (and smaller than 10kB)</li>
<li>Transactions with more than one OP_RETURN output or an OP_RETURN output bigger than 83 B.</li>
<li>Transactions with scriptPuKeys of bare n-of-m multisigs, where m &gt; 3.</li>
<li>Transactions with scriptPubKeys or ScriptSigs that make the transaction malleable.</li>
</ul>
