Hi. This is the qmail-send program at galileo.mdpi.com.
I'm afraid I wasn't able to deliver your message to the following addresses.
This is a permanent error; I've given up. Sorry it didn't work out.
<xxxxxxxx@126.com>:
Connected to 220.181.15.134 but sender was rejected.
Remote host said: 553 Requested action not taken: no smtp MX only,mx4,IsmowKA7X_BkpG9NFzGxCg--.1085S2 1299162213
<xxxxxxxx@yahoo.com.cn>:
203.209.228.250 failed after I sent the message.
Remote host said: 554 delivery error: dd This user doesn't have a yahoo.com.cn account (xxxxxxxxxx@yahoo.com.cn) [0] - mta1007.mail.cnb.yahoo.com