Email Address Skipped on Members Distribution List

Member Milisa Houston is not receiving emails from the members distributions list. We get the notification that her email was "was skipped because it has previously bounced too many times." But emails do not bounce when we email her directly. Is there a way we can resolve this problem?

Amanda Ishikawa
Club 9010
capitoltoasters.toastmastersclubs.org/

The Bounce Count for Email Address [milisa.houston@edd.ca.gov] has been reset to zero.

Seems there is an issue with one of the mail servers at her work.

Your email message to milisa.houston@edd.ca.gov could not be delivered
and was returned to the FreeToastHost server. Details are as follows:
Recipient Email Address: milisa.houston@edd.ca.gov
Email Subject: RE: Volunteers needed
Date Sent: Mon, 16 Dec 2019 17:57:56 +0000
Diagnostic Code:
Delivery Status: 5.1.2 hostunknown
Date Last Attempted: Mon, 16 Dec 2019 18:31:17 GMT
NOTE: This email address may be invalid or non-working and should be changed, deleted, or updated to allow delivery.

running an external test i can see one mail server failing


CheckTLS Confidence Factor for "milisa.houston@edd.ca.gov": 93
MX Server Pref Answer Connect HELO TLS Cert Secure From
mx2.hc3584-61.iphmx.com\032
[unresolvable:25] 5 FAIL FAIL FAIL FAIL FAIL FAIL FAIL