Forum Discussion

Virginia_Mark's avatar
Virginia_Mark
New Contributor II
5 years ago

Cannot sent emails to any cox.net email address using third party clients

I can not send emails from outlook 2019 (desktop) or outlook 2016 (laptop) or my Samsung 7 email app to cox.net email addresses.  I can send it via the cox webmail client.   These were all working ...
Allan's avatar
Allan
Moderator
@Middlejimbo, Are you using a vpn such as with a work computer? If so, I recommend not using the vpn and try again. Also, I recommend bypass the router temporarily and try a direct to modem connection. This is to ensure that there are no router settings causing an issue. -Allan, Cox Support Forums Moderator
middlejim's avatar
middlejim
New Contributor II
5 years ago

Thanks for the prompt reply, Allan.  Note I am also Middlejimbo...had to create a new name to re-join Forum for some reason.

I am not using a VPN.  I get why you are suggesting a router bypass, and I will perform that experiment this evening, but a router filter doesn't explain why cox-to-cox mail are showing up in my Cox WebMail "Sent items" folder if they were not making it past my home network?  You are free to dig around in my WebMail to analyze those sent-but-never-received items.

UPDATE:  In an attempt to avoid sending cox-to-cox for a mass email (~100 addresses, which includes multiple cox.net recipients), I originated the email from my outlook.com address.  I received an Undeliverable notice listing all of the cox.net addresses indicating timeout due to "450 4.4.318 Connection was closed abruptly (SuspiciousRemoteServerError)".  When I sent the exact same email to a single cox.net addressee from my outlook.com address, and it went through without error.

  • JonathanJ's avatar
    JonathanJ
    Former Moderator
    5 years ago
    @middlejim

    What were the results when bypassing the router?

    Jonathan J
    Cox Moderator