Upgrade from ZCS 7.1 -> ZCS 8.0 error: Unable to connect to the MTA

[josebarros]

After the normal upgrade I'm unable to send/receive any email from my Mail server.

Can someone help me out on this?

Here's the error I got:

method:	[unknown]
msg:	try again: Unable to connect to the MTA
code:	mail.TRY_AGAIN
detail:	soap:Receiver
trace:	qtp1680275375-87:http://[SERVER's IP]:81/service/soap/SendMsgRequest:1350842833307:bed7f621cbf73f2f

I've double checked configurations on Hosts/Zimbra Admin and everything seems to be properly configured.

Looking forward to hearing from you.

[josebarros]

Have managed to solve it.

After a lot of checkouts I've been able to get it back sending and receive email.

The last running task was:

/opt/zimbra/libexec/zmfixperms -extended

Thanks and I hope this be useful to someone else.