Hello,

In the last couple of days I was tweaking with my router's firewall and I
when I firewalled some ports outlook uses to transmit emails.

I found that with one of my email accounts, when I do send/receive and my
ports are blocked- outlook reports "Sending message 1 of 1". However, there
is no message.


Any ideas on how I can investigate this further, or what this could be?

Thanks,
Krystian.