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XSERVERのSMTPをECS(EC2)から使おうとすると送信できない

Last updated at Posted at 2020-03-15

問題

XSERVERのSMTPを使ってメールを送りたいのだが、送れなかった。
認証情報は合ってる、ローカルからもその情報で送れる。
ECSに上げるとエラーとなる。

エラー内容

Swift_TransportException
Expected response code 354 but got code "554", with message "554 5.5.1 Error: no valid recipients "

原因

サーバの置き場所がソウルでした

ということでアクセス制限設定を変更。

Artboard.png

無事送信できた。

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