On Thu, Nov 15, 2007 at 04:04:39PM -0500, Steve Yelvington wrote: :Jonathan D. Proulx wrote: :> It seems that the mail client append @<outgoing.mail.host> to my user :> name which my outgoing mail host doesn't like at all. :> :Can you be more specific about the conditions under which this happens? :Does this happen during the SMTP conversation, and if so, exactly where? using CRAM_MD5 auth with or without TLS the server (EXIM4) logs: 2007-11-15 14:36:46 lookup_cram authenticator failed for pamplemousse.csail.mit.edu (localhost) [128.30.4.185]: 535 Incorrect authentication data (set_id=jon at outgoing.csail.mit.edu) I'm not seeing any username in a tcpdump of the SMTP conversation, though I've not looked at this level before. I expected a paintext usename followed by the HMAC-MD5 of the challenge, but as wireshark parses the bits: 220 outgoing.csail.mit.edu ESMTP Exim 4.63 Thu, 15 Nov 2007 16:20:34 -0500 EHLO localhost 250-outgoing.csail.mit.edu Hello n800.csail.mit.edu [128.30.xxx.xxx] 250-SIZE 104857600 250-8BITMIME 250-PIPELINING 250-AUTH CRAM-MD5 NTLM 250-STARTTLS 250 HELP AUTH CRAM-MD5 334 PDIyOTMxLjExOTUxNjE2MzRAb3V0Z29pbmcuY3NhaWwubWl0LmVkdT4= am9uQGNzYWlsLm1pdC5lZHVAb3V0Z29pbmcuY3NhaWwubWl0LmVkdSA0NzQyYzZlNmQ1ZjRkMTNmNDFlZmM4ZDU5ZmI4MzNiYw== 535 Incorrect authentication data 421 outgoing.csail.mit.edu lost input connection :I have not had any issues with my N800 not properly conversing with an :SMTP host either with the default mail client, or with Claws. is Claws just a different UI over the same mail engine as the default client or does it have it's own engine? I may try that just to see if it behaves differently. Thanks, -Jon