OK, I give up, I've checked the zimbra forums and googled for a couple of hours with no result so I'm desparately hoping for some help with this one...
I moved a few domains onto a new Centos 4.3 box with Zimbra latest version.
Some mail is getting through to my user accounts but there is a lot of messages that are being lost.
/var/log/zimbra.log shows many entries that indicate "... lost connection after RCPT ..."
Any clues about where to look would be greatly appreciated.

Scott McNeilage


May 20 09:24:59 localhost postfix/smtpd[11079]: connect from nl-mail5.internet.com[64.62.164.185]
May 20 09:25:00 localhost postfix/smtpd[11079]: 0197E1F90D6: client=nl-mail5.internet.com[64.62.164.185]
May 20 09:25:00 localhost postfix/smtpd[11079]: lost connection after RCPT from nl-mail5.internet.com[64.62.164.185]
May 20 09:25:00 localhost postfix/smtpd[11079]: disconnect from nl-mail5.internet.com[64.62.164.185]
May 20 09:25:11 localhost postfix/anvil[27011]: statistics: max connection rate 2/60s for (smtp:66.135.197.22) at May 20 09:19:40
May 20 09:25:11 localhost postfix/anvil[27011]: statistics: max connection count 2 for (smtp:66.135.197.22) at May 20 09:19:40
May 20 09:25:11 localhost postfix/anvil[27011]: statistics: max cache size 3 at May 20 09:22:57
May 20 09:25:59 localhost postfix/smtpd[8384]: lost connection after DATA from mxpool02.ebay.com[66.135.197.8]
May 20 09:25:59 localhost postfix/smtpd[8384]: disconnect from mxpool02.ebay.com[66.135.197.8]
May 20 09:25:59 localhost postfix/cleanup[8388]: 03C051F90B4: message-id=<228029626.1147859025430.JavaMail.SYSTEM@sj-v3conta17>
May 20 09:26:03 localhost postfix/smtpd[8239]: lost connection after DATA from mxpool02.ebay.com[66.135.197.8]
May 20 09:26:03 localhost postfix/smtpd[8239]: disconnect from mxpool02.ebay.com[66.135.197.8]
May 20 09:26:03 localhost postfix/cleanup[8240]: 84A441F90B7: message-id=<904875.1147860067337.JavaMail.ebba@sjc2bat11>
May 20 09:26:06 localhost zimbramon[11403]: 11403:info: 2006-05-20 09:26:02, STATUS: clickmail.click.com.au: antispam: Running
May 20 09:26:06 localhost zimbramon[11403]: 11403:info: 2006-05-20 09:26:02, STATUS: clickmail.click.com.au: antivirus: Running
May 20 09:26:06 localhost zimbramon[11403]: 11403:info: 2006-05-20 09:26:02, STATUS: clickmail.click.com.au: ldap: Running
May 20 09:26:06 localhost zimbramon[11403]: 11403:info: 2006-05-20 09:26:02, STATUS: clickmail.click.com.au: logger: Running
May 20 09:26:06 localhost zimbramon[11403]: 11403:info: 2006-05-20 09:26:02, STATUS: clickmail.click.com.au: mailbox: Running
May 20 09:26:06 localhost zimbramon[11403]: 11403:info: 2006-05-20 09:26:02, STATUS: clickmail.click.com.au: mta: Running
May 20 09:26:06 localhost zimbramon[11403]: 11403:info: 2006-05-20 09:26:02, STATUS: clickmail.click.com.au: snmp: Running
May 20 09:26:06 localhost zimbramon[11403]: 11403:info: 2006-05-20 09:26:02, STATUS: clickmail.click.com.au: spell: Running
May 20 09:26:51 localhost postfix/smtpd[10562]: lost connection after DATA from mxpool15.ebay.com[66.135.197.21]
May 20 09:26:51 localhost postfix/smtpd[10562]: disconnect from mxpool15.ebay.com[66.135.197.21]
May 20 09:26:51 localhost postfix/cleanup[10563]: 263691F90D3: message-id=<1067073076.1147651091672.JavaMail.SYSTEM@sj-v3conta11>
May 20 09:27:07 localhost postfix/smtpd[8384]: connect from mxpool02.ebay.com[66.135.197.8]
May 20 09:27:08 localhost postfix/smtpd[8384]: 0D9611F90B4: client=mxpool02.ebay.com[66.135.197.8]