ContributionsMost RecentMost LikesSolutionsRe: URGENT: Still having email issues? Post your email status here! Refer Cox Support to this thread. Chris, "Using our webmail would be an effective workaround"???? Thanks for a good laugh to start the day. I manage multiple e-mail accounts (7) from multiple ISPs within a single install of Thunderbird so the effective loss of all of my shared contacts and archives along with the ability to readily switch among sending accounts makes any use of your exceedingly archaic web mail a non-starter. If this is the same Tier 2 'Chris' that I spoke with via phone back on May 13 then why did you simply tell me to change port back to the originial 465 if there was an rDNS issue? Granted that fixed the issue while I was on my home network, but it did nothing for my access from other locations. You had all of the case notes in front of you ... As to the rDNS suggestion, there's nothing of any substance regarding reverse DNS lookups (and Cox's associated requirements) on the page that you have linked. And you fail to explain why this all changed on 4/25 with Cox's "security upgrades" and why none of my other e-mail accounts from this same IP address have no issues with my SMTP mail traffic. A new support case was opened on 5/24 and I am still awaiting callback. Re: URGENT: Still having email issues? Post your email status here! Refer Cox Support to this thread. Please review Cox support ticket CUI7952488 opened 4/25. The error message when attempting to send mail from my laptop reads "An error occurred while sending mail: The mail server sent an incorrect greeting: cxr-obgw-5004a.stratus.cloudmark.com cmsmtp 66.212.50.38 blocked. Refer to Error Codes section at www.cox.com/.../email-error-codes.html for more information. AUP#CXDNS." I have checked multiple RBL resources and this IP address is *NOT* listed on any of them. When sending from my iPhone the SMTP connection simply times out. Re: URGENT: Still having email issues? Post your email status here! Refer Cox Support to this thread. Well I spoke to soon. I just tried to send e-mail from a location other than my home / Cox service location and all of the same old failures are back for both my Win10 laptop running the latest version of Thunderbird and for my Verizon iPhone. Cox, do you really expect to stay in business????? You're making it very hard for me to do so .... Re: URGENT: Still having email issues? Post your email status here! Refer Cox Support to this thread. Just called in to Cox Support again (sixth try is a charm) and got hold of a Tier 2 specialist named Chris that actually knew what he was talking about, was polite, and communicated clearly. He reviewed the notes for my support ticket and then unexpectedly told me to switch *back* to the original port 465 instead of the 'new' 587 communicated by other agents. After forcing my Thunderbird to recognize the new setting I am now able to send and receive successfully from both my laptop and iPhone (via Mail). A big thank you' to Chris, although the reality is that this problem never should have happened in the first place, much less taken more than two weeks to resolve!!! Re: URGENT: Still having email issues? Post your email status here! Refer Cox Support to this thread. Still no solution, 18 days and counting ... Re: URGENT: Still having email issues? Post your email status here! Refer Cox Support to this thread. Still no solution, 15 days and counting ... Re: URGENT: Still having email issues? Post your email status here! Refer Cox Support to this thread. Bruce, thanks for the suggestion. Obviously I don't believe that this is something that users should have to tinker with because of ill-advised changes made by TPTB, but what the heck. I went in and doubled the default timeout from 100 to 200 and re-started T-bird. No joy, same error. I then increased it to 500 with another re-start; same result. I get the distinct impression that the lights are on but nobody's home at the SMTP server ... Re: URGENT: Still having email issues? Post your email status here! Refer Cox Support to this thread. For the record I use this same Thunderbird installation to manage seven (7) e-mail accounts, only one of which is with Cox. None of the other accounts are having any issues with either POP or SMTP. Re: URGENT: Still having email issues? Post your email status here! Refer Cox Support to this thread. I have now contacted Cox No Support five times regarding this matter, most calls involving escalation to Tier 2. I am now 9 days into a promised 1-2 day managerial callback (and reqjuested another one yesterday). Yes, I've changed my password and reset it for my devices. It makes no difference in the failure to send mail via SMTP. The first time that you try to send a message you get this error : "Sending of the message failed. The message could not be sent because the connection to Outgoing server (SMTP) smtp.cox.net was lost in the middle of the transaction. Try again." If you then immediately try to send again you get this error : "Sending of the message failed. The message could not be sent because the connection to Outgoing server (SMTP) smtp.cox.net timed out. Try again." For whatever reason I am now able to send messages via my iPhone, at least of yesterday afternoon, and at least from within my own home on wifi. Will try again out in the real world later today. But the problem continues for my laptop running Thunderbird. Re: URGENT: Still having email issues? Post your email status here! Refer Cox Support to this thread. I continue to have problems sending e-mail via either Thunderbird 60.6.1 on my HP Win10 laptop or my iPhone running plain ol' mail. I can receive (POP) but cannot send (SMTP). I've had an open support ticket since Thursday April 25. I've called in multiple times and am 7 days into a promised 24-48 hour managerial callback.