> On Dec 26, 2017, at 1:34 AM, [email protected] wrote:
>
>>
>> Generally no. There are some SMTP clients that both TLS,
s/both/botch/
Hope that's less confusing.
>> they'll either retry in the clear, or they are likely shoddy
>> spamware.
>> Other log messages will show the IP address of the client. If you weren't
>> expecting any email from that client, just ignore this.
>
>
> thanks, both were from same no hostname IP address
>
> # host 125.212.217.214
> Host 214.217.212.125.in-addr.arpa. not found: 3(NXDOMAIN)
According to "whois" that's an IP address in Vietnam...
--
Viktor.