How to prevent e-mails from going to receivers spam folder?

NOTE! As of June 7th, 2022, the Gmail service will not allow email to be sent to email addresses in Gmail, unless the sender’s domains DNS records contain working SPF and DKIM entries! If you have received a return message that says: 550-5.7.1 [212.47.208 ….] Our system has detected that this message is likely unsolicited mail. To reduce the amount of spam sent to Gmail, […]

Radicenter 2023
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