Problem sending emails only from Outlook, everything else works fine
I am having a bit of a problem sending emails from Outlook. This was working before a reboot of the server we had to do this morning.
Right now webmail works, both sending and receiving, Blackberrys work using IMAP 993. POP without SSL, using 110 works using Outlook. But sending email via SMTP using 587 without TLS is not working.
Release 7.1.3_GA_3346.UBUNTU10_64 UBUNTU10_64 FOSS edition.
The log shows
Nov 14 11:12:22 mail saslauthd: authentication against url 'https://mail.domain.com:7071/service/admin/soap/' caused error 'curl_easy_perform: error(56): Proxy CONNECT aborted due to timeout'
Nov 14 11:12:22 mail saslauthd: url 'https://mail.domain.com:7071/service/admin/soap/' will not be used for (at least) 600 seconds
Nov 14 11:12:22 mail saslauthd: Authentication cycle re-elected url https://mail.domain.com:7071/service/admin/soap/, giving up ...
Nov 14 11:12:22 mail saslauthd: auth_zimbra: gmartillo auth failed: curl_easy_perform: error(56): Proxy CONNECT aborted due to timeout
Nov 14 11:12:22 mail saslauthd: do_auth : auth failure: [user=gmartillo] [service=smtp] [realm=] [mech=zimbra] [reason=Unknown]
Nov 14 11:12:22 mail postfix/smtpd: warning: unknown[220.127.116.11]: SASL LOGIN authentication failed: authentication failure
I see that there is a problem connecting to the service, but not sure why because from the same box I can wget to the address or any other address without problems or timeouts.
What could have changed after the reboot?
Hope someone can help me.