Search found 78 matches

by myriad
Wed Jun 10, 2015 3:10 pm
Forum: Administrators
Topic: Open relay problem
Replies: 21
Views: 1972

Open relay problem

In the Protocol checks & DNS checks, what should I optimally check. In my frustration I have ended up checking them all.
by myriad
Wed Jun 10, 2015 2:57 pm
Forum: Administrators
Topic: Open relay problem
Replies: 21
Views: 1972

Open relay problem

I thought of that. My next step is to try and disable all of the domains. And see if it stops. But when I stop the open relay I am getting messages like this in the log: Jun 10 15:51:07 zmail postfix/smtpd[13544]: NOQUEUE: reject: RCPT from unknown[192.168.1.24]: 554 5.7.1 <michael4chen@yahoo.com.tw...
by myriad
Wed Jun 10, 2015 2:40 pm
Forum: Administrators
Topic: Open relay problem
Replies: 21
Views: 1972

Open relay problem

This is ridiculous! The system was working fine for almost 10 years and now we are basically crippled! I am running out of options here...
by myriad
Wed Jun 10, 2015 11:51 am
Forum: Administrators
Topic: Open relay problem
Replies: 21
Views: 1972

Open relay problem

All other tests pass OK: SMTP Reverse DNS Mismatch OK - 69.165.220.191 resolves to zmail.myriad.ca SMTP Valid Hostname OK - Reverse DNS is a valid Hostname SMTP Banner Check OK - Reverse DNS matches SMTP Banner SMTP TLS OK - Supports TLS. SMTP Connection Time 0.718 seconds - Good on Connection time ...
by myriad
Wed Jun 10, 2015 11:48 am
Forum: Administrators
Topic: Open relay problem
Replies: 21
Views: 1972

Open relay problem

Followed the step:zmprov mcf zimbraMtaSmtpdSenderLoginMaps proxy:ldap:/opt/zimbra/conf/ldap-slm.cf +zimbraMtaSmtpdSenderRestrictions reject_authenticated_sender_login_mismatch Now I am receiving mail but the spammers are back (66 messages in the deferred queue already) and the open relay test fails ...
by myriad
Wed Jun 10, 2015 10:46 am
Forum: Administrators
Topic: Open relay problem
Replies: 21
Views: 1972

Open relay problem

OK. Getting some progress here. I have closed the open relay using the local IP and not the local subnet. The only change on the server has been a new static IP assigned by the ISP. Here are the relay results: Connecting to 69.165.220.191 220 zmail.myriad.ca ESMTP Postfix [624 ms] EHLO MXTB-PWS3.mxt...
by myriad
Wed Jun 10, 2015 9:14 am
Forum: Administrators
Topic: Open relay problem
Replies: 21
Views: 1972

Open relay problem

Doesn't work: [Method 0 @ 1433945626] <<< 220 zmail.myriad.ca ESMTP Postfix >>> HELO mailradar.com <<< 250 zmail.myriad.ca >>> MAIL FROM: <antispam@mailradar.com> <<< 250 2.1.0 Ok >>> RCPT TO: <relaytest@mailradar.com> <<< 250 2.1.5 Ok >>> QUIT <<< 221 2.0.0 Bye [TEST NOT PASSED]
by myriad
Wed Jun 10, 2015 9:04 am
Forum: Administrators
Topic: Open relay problem
Replies: 21
Views: 1972

Open relay problem

mynetworks = 127.0.0.0/8 192.168.1.0/24
by myriad
Wed Jun 10, 2015 9:01 am
Forum: Administrators
Topic: Open relay problem
Replies: 21
Views: 1972

Open relay problem

From my original post:I am running: Release 8.6.0.GA.1153.UBUNTU14.64 UBUNTU14_64 FOSS edition, Patch 8.6.0_P1.

I have been running this server problem free for 7 years. This has stumped me!
by myriad
Wed Jun 10, 2015 7:28 am
Forum: Administrators
Topic: Open relay problem
Replies: 21
Views: 1972

Open relay problem

Also is this article:http://wiki.zimbra.com/wiki/Rejecting_false_%22mail_from%22_addresses In step two, when you are asked to put in:localdomain.com REJECT You're not me! - should that be my trusted domains or the domains I want to block?

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