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The SMTP Diaries

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Email filtering typically seems capricious, and end users have discovered by experience that critical messages can be filtered arbitrarily with the spam filters in their consumer, inside their server, or someplace within the cloud. This really is an illustration of a "Usually open" (NO) relay: the contacts in the 2nd https://cruzhrag17518.iamthewiki.com/7995816/optimierung_der_e_mail_kommunikation_der_einsatz_eines_newsletter_mailservers

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