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551 5.7.6 email rejecting as spam

551 5.7.6   error message on sending emails rejected as spam from browser

Webmail works   What is the issue  How to fix>

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Esteemed Contributor
Esteemed Contributor

Re: 551 5.7.6 email rejecting as spam

Most likely Optus webmail is using an ip address that is not being flagged a spam. Not sure what device you are using however doing a restart or waiting a short time may change to an ip address that is not blocked. Unfortunately Optus mail servers do get blocked often and there is no easy method to stop this from happening.