Thanks for the reply. I performed that process and the voicemail email FROM address didn’t change. Is there anything else that needs to be modified?
Here’s a snippet from the maillog of leaving a test voicemail after making that change:
Feb 13 17:21:16 ****** postfix/qmgr: 7636F22CAD: from=**<email@example.com>**, size=105678, nrcpt=1 (queue active)
Feb 13 17:21:16 ******* postfix/smtp: 7636F22CAD: to=<******@******.com>, relay=aspmx.l.google.com[2607:f8b0:4003:c03::1b]:25, delay=0.38, delays=0.04/0.01/0.12/0.21, dsn=5.7.1, status=bounced (host aspmx.l.google.com[2607:f8b0:4003:c03::1b] said: 550-5.7.1 [2600:3c00::f03c:91ff:fe7b:2367] Our system has detected that this 550-5.7.1 message does not meet IPv6 sending guidelines regarding PTR records 550-5.7.1 and authentication. Please review 550-5.7.1 https://support.google.com/mail/?p=IPv6AuthError for more information 550 5.7.1 . v132si2068275oib.15 - gsmtp (in reply to end of DATA command))