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Hi I am using WP Mail SMPT with Mailgun I send a test email to my personal email account xxxx@verizon.net and it doesn’t get through. When I send to any other email provider cPanel, Gmail the test mail gets through fine. Here is the mail delivery message from my Mailgun logs: Will retry in 900 seconds: wordpress@diyinternetmarketer.com → xxxxxx@verizon.net ‘WP Mail SMTP: Test email to xxxxxxx@verizon.net‘ Server response: 421 4.7.0 [TSS04] Messages from 104.130.122.30 temporarily deferred due to user complaints – 4.16.55.1; see https://help.yahoo.com/kb/postmaster/SLN3434.html
Can you help me fix?