I have an ongoing problem with my mail server. From my XP machine, there are times I cannot connect to the mail server. When I do a netstat, I get a message similar to:

webmail.mailserver.com:https SYN

I cannot telnet to webmail.mailserver.com 443 when this happens either. I did a ifconfig on my mail server and receive this:

eth0 Link encap:Ethernet HWaddr 00:19:B9:B0:11:69
inet addr:10.9.10.205 Bcast:10.9.10.255 Mask:255.255.255.0
inet6 addr: fe80::219:b9ff:feb0:1169/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:70123223 errors:0 dropped:0 overruns:0 frame:0
TX packets:158471376 errors:375609 dropped:0 overruns:0 carrier:375609
collisions:8230895 txqueuelen:1000
RX bytes:57476371051 (53.5 GiB) TX bytes:88033977721 (81.9 GiB)
Interrupt:11 Memory:f8000000-f8011100



uname -a:
Linux webmail.mailserver.com 2.6.9-55.0.2.ELsmp #1 SMP Tue Jun 12 17:58:20 EDT 2007 x86_64 x86_64 x86_64 GNU/Linux

Network controller:
05:00.0 Ethernet controller: Broadcom Corporation NetXtreme II BCM5708 Gigabit Ethernet (rev 11)


Does this sound like more of a network card/driver issue or a network bandwidth issue?

Carrier errors usually relate to the cabling but can also be NIC or switch/hub problems (bad contacts on RJ45 sockets)