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SwiftMailerでメールが送信できない。 Expected response code 354 but got code "554", with message "554 5.5.1・・・

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

これに遭遇した時は、メールアドレスを別のサーバで取得したメールアドレスのSMTP設定をして試してみて下さい。

取り立てドメイン、作り立てのメールアドレスだからいけないのかわかりません。
別サーバのメールアドレス変えたら、送信が出来ました。
システム側のバグではないです。バグの原因を調べる時間が喰われるのって本当やだよね。

でわ、また。

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