To my understanding the email host in this test is run by hostgator.com. The service is purchased from a reseller; the upstream provider isn't evident.
TLS starts OK. Correct? There is no problem for the Web interface to mail; userid and password are correct. Can the problem be anything other than authentication protocol? Any particular swaks parameters worth trying? Thanks, ... P. swaks -a PLAIN,LOGIN -au peter -ap ........ -tlsc --port 465 -s mail.easthope.ca -t a...@mail.ubc.ca === Trying mail.easthope.ca:465... === Connected to mail.easthope.ca. === TLS started with cipher TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256 === TLS no local certificate set === TLS peer DN="/OU=Domain Control Validated/OU=Hosted by HostGator.com, LLC./OU=PositiveSSL Wildcard/CN=*.websitewelcome.com" <~ 220-ccx.websitewelcome.com ESMTP Exim 4.92 #2 Fri, 24 Jan 2020 16:02:23 -0600 <~ 220-We do not authorize the use of this system to transport unsolicited, <~ 220 and/or bulk e-mail. ~> EHLO dalton.invalid <~ 250-ccx.websitewelcome.com Hello dalton.invalid [142.103.107.137] <~ 250-SIZE 52428800 <~ 250-8BITMIME <~ 250-PIPELINING <~ 250-AUTH PLAIN LOGIN <~ 250 HELP ~> AUTH PLAIN .................... <~* 535 Incorrect authentication data ~> AUTH LOGIN <~ 334 VXNlcm5hbWU6 ~> ....... <~ 334 UGFzc3dvcmQ6 ~> ........ <~* 535 Incorrect authentication data *** No authentication type succeeded ~> QUIT <~ 221 ccx.websitewelcome.com closing connection === Connection closed with remote host. -- https://en.wikibooks.org/wiki/Medical_Machines https://en.wikibooks.org/wiki/Oberon Tel: +1 604 670 0140 Bcc: peter at easthope. ca