Claws Mail 3.11.1-2  network log on fedora 20 (current yum repository version of claws mail)

* Account 'Mac Personal Email': Connecting to SMTP server: XXXXXXXXXX:25...
[15:45:59] SMTP< 220-mercury.linksky126.com ESMTP Exim 4.84 #2 Sat, 24 Jan 2015 15:45:59 -0600
[15:45:59] SMTP< 220-We do not authorize the use of this system to transport unsolicited,
[15:45:59] SMTP< 220 and/or bulk e-mail.
[15:45:59] ESMTP> EHLO #XXXXXXXXXX
XXXXXXXXXX
[15:45:59] ESMTP< 250-XXXXXXXXXX Hello XXXXXXXXXX [XXXXXXXXXX]
[15:45:59] ESMTP< 250-SIZE 52428800
[15:45:59] ESMTP< 250-8BITMIME
[15:45:59] ESMTP< 250-PIPELINING
[15:45:59] ESMTP< 250-AUTH PLAIN LOGIN
[15:45:59] ESMTP< 250-STARTTLS
[15:45:59] ESMTP< 250 HELP
[15:45:59] ESMTP> AUTH LOGIN
[15:45:59] ESMTP< 500 unrecognized command
** error occurred on SMTP session
*** Error occurred while sending the message:
500 unrecognized command