550 5.1.1 recipient rejected e-mail

[news]

[wireless]

Hi. Any answers please and thanks?

I have a sporadic problem when e-mailing to domains other than Telus.net, as follows:-

Your message did not reach some or all of the intended recipients.
Subject:
Sent: 21-Jun-17 2:47 PM
The following recipient(s) could not be reached:
'X' on 21-Jun-17 2:47 PM
550 5.1.1 recipient rejected
Y (Y@shaw.ca) on 21-Jun-17 2:47 PM
550 5.1.1 recipient rejected
Z (Z@me.com) on 21-Jun-17 2:47 PM
550 5.1.1 recipient rejected

and so on. The problem happens with Outlook 2013 as well as Pegasus. This happens for individual addresses as well as those to a small group who are on domains other than Telus. I tried increasing time out limit to no avail. Intended recipients assure me that I'm not blocked or spamming. My own address is included with the group. The System Admin rejection message arrives before the message from myself, which makes me think that the message is not getting out of the Telus system.

I can't find a support e-mail address for Telus, but I did try live chat which consumed 2½ hours and resolved nothing. Any ideas please?


More...