Only on Outbound emails I get the following error. Just started yesterday. I've checked all the settings, etc. and everything is right. Can't figure it out. Can anybody help? An error occurred while sending mail. The mail server responded: 5.2.0 3Ton1x0010PnBoL01TonSu internal error. Please check the message and try again. Tina

Hi, please review this link: www.cox.com/secureemail to see if that corrects your issue. If it doesn't, send us a message on Facebook, Twitter or email us at cox.help@cox.com for additional assistance. We're here to help! Thanks,

CarolLM - I did that already. I read and did everything I can think of. My settings are okay and I can send thru gmail. But if I try to send to a large number of people using my Cox email it won't send and I get that server error message each time. I used to be able to do this and now can't. It's not my email client if I can send thru gmail. It's a problem with Cox. Any other suggestions?

I have the same problem. "Brian from Cox" had a post on this and I did everything the post stated - on Changing your e-mail server settings for Microsoft Outlook 2007-2016 (I have 2007) and it worked one time. After that it started giving me an error message that "Relaying not allowed" to any recipient. After several more tries it gives me an error message of "too many bad command" - it also gave me message one other time to the effect that the sever does not accept encrypted messages. This all started when cox made a change to the encryption settings. Is there any plan to fix this?

I have the same problem. I called Cox support today and after searching for awhile, the technician confirmed internal documentation that Cox now has a email sending limit of LESS THAN 10 email recipients. Otherwise you get that error message. This is all new within the last week. Cox, how about changing that error message to something informative such as "Error. maximum of 9 email recipients allowed." Of course this is ridiculous. Users can't send out emails to nearby neighbors, boy scout members, church choir members, etc. How would Cox even send emails to their own tech support department employees? I'm sure there are more than 9!

Cox has sending limits in place for outbound email. These limits are intended to reduce the amount of unwanted spam on the Internet by identifying and containing “spam bot” attacks generated from Cox customers’ PCs. These limits are set very high, and it is unlikely that normal residential mailings will surpass the limits. Cox has chosen sending limits based on other ISP’s best practices and analysis of existing email traffic to insure even large legitimate residential mailings complete with no errors. Please resend your message using Cox Webmail instead of your current email utility (https://myemail.cox.net). I successfully sent an email to 10 recipients this morning using my Cox Webmail account.

EMAIL ERROR | Cox Community

TinaV
New Contributor
7 years ago
John - Very well said! Ridiculous to have them just say to use their Webmail instead of our own email clients that we prefer and have been using.

What you had to do is ridiculous. I did think of that, but I routinely send a group email to over 200 families and even breaking my list down to 9"s still would take a long while when previously I did it in a couple of minutes with one email.

COX - ANSWER! DO YOU HAVE ANY OTHER SOLUTIONS!
AlChub
New Contributor
7 years ago
I just finished talking to Cox tier 2 support -- 9 seems to be the limit for now -- but the helpful person I talked to felt that, once all Cox email users get switched over to SSL, the limit may be raised. Meantime, let's be civil and work with Cox. It's not productive to be limited to 9 recipients, I know, but I suggest patience. Good night from Las Vegas.
TinaV
New Contributor
7 years ago
Agree on being civil, but it is difficult when Cox doesn't even notify anybody on this huge change. And how much patience should we have before just dumping Cox and trying to find another provider?
John2222
Contributor II
7 years ago
Thanks AIChub for another confirmation from Cox that the new email sending restriction is less than 10 email recipients. So far no response from any of the forum Moderators, but hopefully we'll get a fix soon!
ksdalet
New Contributor
7 years ago
If COX cannot find a way to fix it, then it is time for a new email client. Possibly a new ISP.
TinaV
New Contributor
7 years ago
Totally agree. Just in the last couple of days it's been extremely annoying. I frequently send emails to more than 9 people at a time and they're not spam or junk!

I've been using gmail the last couple of days but it is annoying because I do have all my folders and saved emails in Cox/Thunderbird. Just have to figure out how to export them. I have a lot of folders.

Anybody hear anything from Cox? I received a phone call from a rep answering my trouble ticket and she knew nothing about the change and said she'd look into it but have not heard back.
Rhonda_in_Mesa
New Contributor
7 years ago
Cox no longer allows GROUP EMAILS to more than 9 recipients from a cox.net address from your home computer mail program. My issue is that NONE of your techs know this! I spent hours trying to trouble shoot it on my end.....only to find out COX Administration decided to make this change WITHOUT telling the customers OR their own COX employees. I was finally advised by a COX Tier 2 tech upon filing a formal complaint (and after calling 10 times) to open a Gmail account because COX no longer allows group emails larger than 9. It is heartbreaking to me that COX does not tell their customers the truth. The poor customers don't know what happened and are frantically trying to troubleshoot the issue! Just tell them!!! Send a memo to COX employees so they will tell customers. COX wasted several days of my time. And I am just one of a lot of people having the same issue!
johntc
New Contributor
7 years ago
Wish I could help. I'm having same problem for over 1 week now. I've been with Online Chat 4 times, called support 3 times and I still outgoing email using Outlook does not work. I've changed all settings as required by COX and tried every variation. Today I again called Tech Support and their ONLY suggestion was that I should Contact Microsoft Outlook and tell them the issue. According to Cox they are having outgoing email issues with almost ALL of the 3rd party email providers, such as Outlook. I continue to get the error which states that: " Personsname"@"server".com on 1/31/2018 11:36 AM 550 5.1.1 relaying not allowed. Both incoming/outgoing work fine from directly logging into my COX account. However I prefer Outlook since it has integrated, email, calendar, tasks, schedules, etc. all in one piece of software. Seems like this is COXs issue to fix if they say they support these 3rd party email servers. . Basically the issue is not resolved and I could not get a straight answer if it will be resolved. Sorry I can not be of help and unfortunately there are many others out there with the same issue. Good luck.
johntc
New Contributor
7 years ago
Same issue here
jannymv
New Contributor
7 years ago
Thanks John - it's good to see others are having same problem. I get a message that I can not log on the outgoing mail server with Outlook 07. When I called Cox last nite they said "everythings fixed now - call Microsoft". Yeah right - I'm supposed tell MSFT "your practically universally used software does not work after Cox made a change - fix it." At least you indicate they know they have a problem (though not necessarily that they're willing to fix it) - we had friends who had problems after Cox made other "upgrades" but this is first time it happened with us. I also get the "relaying not allowed" message sometimes.