Hello,
I have been following with interest all the talk on this subject. I have tried using various port numbers, 587, 465 and 25 for the outgoing smtp, and they were working a week ago, now it is not!!!! Very frustrating. Someone suggested turning off the firewall which I have done, and someone else is suggesting it could be the Antivirus that is blocking it, I am using ESET NOD32 ANTIVIRUS, as I was told it is better than AVG which I was using before.
Help please. It is driving me round the bend.
Configuration: Windows XP Firefox 3.5.3