ప్రత్యుత్తరాలన్నీ (2)
To assist you, it is important to see a screenshot of your incoming server settings pane. That may generate suggestions for you. Thank you
また、http://forums.mozillazine.jp/ にある日本語サポートサイトを利用することも検討してみてください。このサイトは、https://wiki.mozilla.org/Thunderbird/Support/Community_support_based_on_languages#Non_English_Thunderbird_Support_Forums に記載されています。
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