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postfix relay access denied


How to resolve and prevent 554 5.7.1 : Relay access denied email errors in Linux and Windows mail servers

How to resolve and prevent 554 5.7.1 : Relay access denied email errors in Linux and Windows mail servers

Emails play a crucial role in online communication. Business orders to meeting invites, lost or delayed mails can end up creating disgruntled customers.

In our role as Website Support Specialists for online businesses, we resolve hundreds of mail issues every day. A commonly encountered email bounce error faced by web hosts, website owners and server owners is:

554 5.7.1 <user@recipient.com>: Relay access denied (more…)