![]() Mailsmtp Last Error Explanation: MAILSMTP_ERROR_AUTH_LOGINWe have by far the largest RPM repository with NGINX module packages and VMODs for Varnish. SMTP Last Response: 5.7.3 Authentication unsuccessful Successfully authenticates but SMPT fails with this ending error: Microsoft Exchange Server 2013 or 2010 (unsure which, sorry). Reply to this email directly, view it on GitHub ( #341 (comment)), or mute the thread ( ). You are receiving this because you were mentioned. (There's even a comment in the GSSAPI case that says needs to be tested ). Mailspring doesn't yet support GSSAPI ( #103 ( #103)) and it seems like libmailcore2's implementation may be entirely broken. (The thinking is it's more secure, though with STARTTLS / SSL it doesn't really matter.) However, GSSAPI / Kerberos rely on system configuration, take a domain/realm, etc. Mailspring uses libmailcore2's auto configuration of SMTP authentication ( ) and the app always prefers GSSAPI to PLAIN when it's present. It turns out Zentyal was the perfect test case - it supports a small set of SMTP AUTH methods out of the box, just GSSAPI and PLAIN. Stay tuned! Thanks again to everyone who provided context and details. I'm wrapping up testing a new release (with Touch Bar support!) and will ship the patch fo this in the next few days. And hopefully at some point soon I can build / fix support for GSSAPI as well. I've also extended the logging in this code so that it prints the auth method it chose to use, which I think should make finding this sort of problem trivial in the future. I think that this took a long time to find because most large mail providers support CRAM_MD5 and/or DIGEST_MD5 and often don't support GSSAPI (since it's primarily for schools, enterprises, etc. (There's even a comment in the GSSAPI case that says needs to be tested ).ĭisabling the GSSAPI / Kerberos authentication methods and allowing this code to fall through to the PLAIN option fixes the problem and I'm able to connect / send mail through Zentyal. Mailspring doesn't yet support GSSAPI ( #103) and it seems like libmailcore2's implementation may be entirely broken. Then I downloaded and configured a virtual machine running Zentyal ( ), another out of the box solution that uses Dovecot and Postfix. I configured a "Mail-in-a-box" ( ) server (which is Dovecot + Postfix) and didn't have any trouble signing in and sending mail from Mailspring. I spent some time this weekend tracking this down and was able to reproduce it. Hey folks-thanks for all the detailed comments and follow-up here. I could probably provide more info if I know what the SMTP errors are. * LIST (\HasNoChildren) "/" "Sent Messages" * LIST (\HasNoChildren) "/" "Junk E-Mail" * LIST (\Marked \HasNoChildren) "/" INBOX * LIST (\HasNoChildren) "/" "Deleted Messages" * LIST (\HasNoChildren) "/" "Deleted Items" * CAPABILITY IMAP4 IMAP4rev1 AUTH=NTLM AUTH=GSSAPI AUTH=PLAIN UIDPLUS CHILDREN IDLE NAMESPACE LITERAL+ * OK The Microsoft Exchange IMAP4 service is ready. The IMAP seems to connect easily, but SMTP crashes with a pretty bland error message. Note that this is on the same computer Nylas was installed on, but I have since removed it. I managed to do this on Nylas with no issues (and on countless other mail programs). ![]() I'm running into trouble setting up a simple IMAP/SMTP account. No Is the issue reproducible with a particular attachment, message, signature, etc? No Is the issue related to a specific email provider (Gmail, Exchange, etc.)? Ubuntu 16.04 LTS What version of Mailspring are you using?īug? Do you have any third-party plugins installed? If so, which ones? Similar, but not the same What operating system are you using?
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