After graduating from college, I had my college email forwarded to my gmail account, and in Settings > Account I set it up so that I could still send mail from my college email address. This has been working perfectly for close to a decade. But I've been noticing that when I do this, the "FROM:" field in the received email will often say something like "email@example.com on behalf of firstname.lastname@example.org". I wanted to get rid of that "on behalf" stuff, so I was playing around with the settings, and now I can't send mail from my college account at all! Every email gets bounced back to me.
So in gmail, I went to Settings > Accounts and Import and then "edit info" next to my college account. The settings I'm using are:
SMTP Server: authusersmtp.mail.cornell.edu
Secured connection using TLS
Since that wasn't working, I also tried every combination of those settings and it still isn;t working.
I even verified these same settings with my wife's account (also an alum, and has the same setup, but she doesn't have this issue), but my emails are always bounced back if I try sending on behalf of the college account. I also tried deleting and then re-adding under "Send mail as", which required that I re-"verify" my gmail account from my college account but the issue didn't go away. The bounced back message is pasted below. I clicked on the link in the error email
One possible idea was if it was some sort of security setting in my gmail account, although I verified that 2-step verification is currently off.
Delivery to the following recipient failed permanently:
Technical details of permanent failure:
Google tried to deliver your message, but it was rejected by the relay authusersmtp.mail.cornell.edu byauthusersmtp.mail.cornell.edu. [18.104.22.168].
The error that the other server returned was:
556 5.3.3 You are not entitled to use this service. More information can be found here http://www.it.cornell.edu/services/guides/student_email/howto/smtp-2013.cfm
----- Original message -----
X-Received: by 10.194.5.74 with SMTP id q10mr28426562wjq.27.1439064169724;
Sat, 08 Aug 2015 13:02:49 -0700 (PDT)
Received: by 10.27.176.132 with HTTP; Sat, 8 Aug 2015 13:02:49 -0700 (PDT)
Date: Sat, 8 Aug 2015 16:02:49 -0400
From: ********** ****** <*******@cornell.edu>
Content-Type: multipart/alternative; boundary=047d7b45070ea543de051cd23cc6