220 mail.xenoncloud.net ESMTP Postcow 250-mail.xenoncloud.net 250-PIPELINING 250-SIZE 104857600 250-ETRN 250-STARTTLS 250-ENHANCEDSTATUSCODES 250-8BITMIME 250 DSN
220-mail.xenoncloud.net ESMTP Postcow 250-mail.xenoncloud.net 250-SIZE 104857600 250-ETRN 250-STARTTLS 250-ENHANCEDSTATUSCODES 250 8BITMIME
220 mail.xenoncloud.net ESMTP Postcow 250-mail.xenoncloud.net 250-PIPELINING 250-SIZE 104857600 250-ETRN 250-AUTH PLAIN LOGIN 250-AUTH=PLAIN LOGIN 250-ENHANCEDSTATUSCODES 250-8BITMIME 250 DSN