Connected my phone to WireGuard, working just fine here. Noticed after I disconnected WireGuard, the #DeltaChat relays continue to send PUSH+ACK packets to the WireGuard IP for 5 even 10 minutes after it's disconnected. Are the timeouts really long on DeltaChat relays? I think only @stefano 's relay actually sent a RST+ACK and stopped sending packets, but the other two relays I connect to continue to send PSH+ACK over and over.