Machine: PC Win7 Professional SP1 up to date with all updates., Outlook 2010 as my POP3 e-mail client. Machine is one of 2 identical boxes set up behind a router. Running Norton Internet Security - Comcast's free version (which as far as I can tell is identical to the commercial version).
Machine is new as of April 2014. I have 5 POP3 e-mail accounts. My ISP is (unfortunately) Comcast. Since the machines were new, I have had zero problems with e-mail. I really dislike webmail, so I have all my accounts set up in Outlook 2010.
Starting 5 days ago, e-mails sent from any of the 5 POP3 accounts send fine, they show up in my "sent" folder, but never reach the recipients. I get no "bounce" notices or any other indication that anything is wrong, the e-mails just don't get there. If I log into Comcast's webmail, the e-mails get received as they should, but using Outlook, they don't. Nothing has changed on the machine, no changes made to Outlook, etc.
I went through 5 days of ridiculous Comcast nonsense being shuffled from tech to tech, ticket to ticket, spent hours on hold, well...you get the picture (especially if you're a Comcast subscriber.) They basically did nothing for me other than trying an alternate set of server port numbers, which didn't work. After 5 days Comcast closed the ticket on me with the statement that "our only requirement is to provide you with webmail.." Of course, I'm livid with them, basically saying if you're running an e-mail client, you're totally on your own. Wish I could change, but they're the only game in town.
Last night, I thought I had it fixed...I tried accessing each POP3 account through Outlook, and used the "repair connection" wizard. It changed the outgoing server port number and switched the encryption from SSL to TLS, and suddenly all 5 accounts worked fine - several test e-mail sent to various recipients, all received promptly and replied received promptly. This held up for about 24 hours, all of a sudden, my Outlook e-mails are once again sending but never getting anywhere.
Right before I posted this, I "repaired" my primary account once again with Outlook's "repair connection" feature. Right this second, my Outlook e-mails are being received properly, but based on it only lasting 24 hours last time, I'm wondering what is going on.
Obviously Comcast is zero help...I'm new to Outlook since April, I'd always used Outlook Express prior to this on the XP machines these replaced, so I'm in relatively unfamiliar territory with Outlook 2010 as an e-mail client.
I still think Comcast changed something somewhere - I clone my hard drives, and I had a cloned HDD from August 26th, way before this problem started. I swapped that HDD into the machine, and the lost-email problem was still there...this would lead me to believe that the problem is not with Outlook, as it was working fine on August 26.
I can't understand how everything worked fine for 5 months and then suddenly this problem crops up....
Does anybody have any idea what this problem might be? I have everything set up in Outlook just like I like it, several rules moving incoming e-mails into appropriate folders for each account, 2 IMAP accounts for a website I have (which worked perfectly through all of this, of course, they don't go through Comcast's servers)...I can't bear the thought of regressing to webmail...please help - I'll try anything.
Many thanks in advance to anyone who can offer some help.
Edited by Slider51, 22 September 2014 - 04:55 PM.