Entrepreneur AJ via Postfix-users:
> But the LMTP connection is timeing out from the second instance (but
> working for the default instance)
>
> I have used tcpdump and can see the connection trying to be established
> but no ack is being received wireshark reading the pcap file keeps
> saying "Conversation Completeness: Incomplete, SYN_SENT (1)" with TCP
> retransmission for every attempt.
>
> I have tried with and without firewalls with the same issue.
>
> Any pointers would be appreciated.
Your tcpdump at the client end shows that SYN is sent, but no SYN|ACK
is received.
To find out why the client receives no SYN|ACK, you have to tcpdump
at the server end. Does the SYN actually arrive at the server end?
Does the server time out sending ARP requests before it cna send
SYN|ACK?
Wietse
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