Cannot send email with attachments
Whenever I attempt to send an email with an attached webpage I receive the following error message.
If it is not legible the error code reads as follows: AUP#CXSNDR
What does it mean ...
Forum Discussion
This is the explanation for the error: Can someone explain what it means or what needs to be done to eliminate it
| There was a problem with the sender's domain. | Your email failed authentication checks against your sending domain's SPF, DomainKeys, or DKIM policy. |
Since I'm sending the email to myself the sender's domain is Cox.
i'm limited to 20meg or so when i email from cox to cox or cox to another email. i just checked a couple web pages i've got saved, 36meg & 136meg.
- @Bearone2, how many senders are you sending the attachments to at one time? Are you experiencing this error on the myemail.cox.net or are you using a Client email server?
We have a system in place for email authentication/validation, and this protocol is designed to detect and block email spoofing. Under email settings, please enable SMTP authentication for outgoing email, if not already enabled. We also recommend you change your outgoing email port to 465 and turn on SSL/TLS encryption. If your devices can’t support the change to port 465, you can continue to use Port 25 or 587 for outgoing email and disable SSL/TLS encryption. -Kevin M. Cox Support Forum Moderator
- @bobC927
If you're using a 3rd party client like outlook we recommend updating your computer or other device operating systems and third-party applications to the latest versions, including security patches, email client programs.
Jonathan J
Cox ModeratorI'm on Win-7 with all updates current & applied and I use Mozilla Thunderbird (current version). This problem just recently cropped up. Previously, I was able to send emails to myself with no problem. All possible solutions welcome and appreciated.
