Fallback from the Submission port to the SMTP port

Kazu Yamamoto IIJ Research Laboratory Written: November 9, 2005 Modified: December 28, 2005 Abstract To solve the problem of spam messages, a mail-reader should use the Submission port (587) instead of the SMTP port (25), which is used currently, when sending a message. The author would propose to change a mail-reader so that it first tries the Submission port then makes a connection to the S

[lockcole]

興味深い。認証技術の普及によって，メールの復権なるか。

[stealthinu]

タグが変な感じするが、周辺情報ということで。まずsubmissionで試してから25で接続、というアイデア。