How to avoid email grey listing and spam traps in a proprietary search.

May 22, 2020
by a searcher from Harvard University - Harvard Business School in San Diego, CA, USA
I recently noticed a marked decline in email open rates and, through a series of tests, I've become convinced that my email domain has become grey listed, causing emails to land in spam traps or be returned as undelivered. Open rates have declined from ~40% to <10%. Have any others experienced this, and are you able to share how to resolve or avoid this situation?
from Pepperdine University in Los Angeles, CA, USA
https://www.upwork.com/fl/andrewgenung3
Cliffords advice above is all good too and part of the process - but I wanted a little more and certainty I wasn't getting blacklisted.
from The University of Chicago in Chicago, IL, USA
You could also try running emails through Mail Tester or similar tools before sending to ensure your copy isn't getting you flagged (e.g. due to excessive exclamations/caps or certain keywords. Additionally, including greater email customization and/or an unsubscribe/opt out link may reduce the number of recipients that mark your email as spam.