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I am having difficulties sending emails to certain (not all) parties. Oddly, it mostly seems it affects friends living in TX and PA. I often will get the following pop-up when I hit “Send” - but NOT always:
! An error occurred inside the server which prevented it from fulfilling the request.
No other direction or detail is provided to trouble-shoot. This error message does not always show up and I only know that a party has NOT received my emails after days go by without getting a response (and I get confirmation from them later that they never got my email).
I use Apple Mail and updated my mail server settings earlier in 2018 per Cox’s direction & specifications.
For incoming I have mail set to imap.cox.net / Port #993 using TLS/SSL
For outgoing I have mail set to smtp.cox.net / Port #465 using TLS/SSL
My OS is Sierra 10.12.6 and I diligently install all security/software updates Apple posts for Safari and my computer.
I’ve even deleted my username & password and re-entered them in both my in-coming & out-going email server settings per one of the Forum’s suggestions to another customer with a similar issue - but that has not resolved my problem. My trouble sending emails described above also occurs when I use myemail.cox.net as a work around. Any advice is much appreciated.
Thank you for the confirmation re security concerns - as well as the link to imap server settings. I have gone in and reset my smtp port # to 587. Let me see how that works - through Apple Mail and www.myemail.cox.net. Should I continue to get the pop-up "! an error occurred inside the server..." messages - I'll come back and initiate the email to cox.help for additional follow-up as you suggest. Thank you.