E-Mailadresse: Gültiger Callout Check?

greystone

greystone

Active Member
Ich wundere mich gerade über die Kommunikation des Mailservers meines Anti-Spamdienstleisters. Dieser meint, dass wäre eine legitime Art den CallOut-Check durchzuführen.

Ausschnitt aus postfix-mail-log.
Code: 
     1  postfix/smtpd[14819]: > mx33.nospam.com[1.2.3.29]: 220 mymailserver.mydomain.de ESMTP Postfix (Debian/GNU)
     2  postfix/smtpd[14819]: < mx33.nospam.com[1.2.3.29]: EHLO mx33.nospam.com
     3  postfix/smtpd[14819]: > mx33.nospam.com[1.2.3.29]: 250-mymailserver.mydomain.de
     4  postfix/smtpd[14819]: > mx33.nospam.com[1.2.3.29]: 250-PIPELINING
     5  postfix/smtpd[14819]: > mx33.nospam.com[1.2.3.29]: 250-SIZE 209715200
     6  postfix/smtpd[14819]: > mx33.nospam.com[1.2.3.29]: 250-VRFY
     7  postfix/smtpd[14819]: > mx33.nospam.com[1.2.3.29]: 250-ETRN
     8  postfix/smtpd[14819]: > mx33.nospam.com[1.2.3.29]: 250-STARTTLS
     9  postfix/smtpd[14819]: > mx33.nospam.com[1.2.3.29]: 250-AUTH LOGIN PLAIN
    10  postfix/smtpd[14819]: > mx33.nospam.com[1.2.3.29]: 250-AUTH=LOGIN PLAIN
    11  postfix/smtpd[14819]: > mx33.nospam.com[1.2.3.29]: 250-ENHANCEDSTATUSCODES
    12  postfix/smtpd[14819]: > mx33.nospam.com[1.2.3.29]: 250-8BITMIME
    13  postfix/smtpd[14819]: > mx33.nospam.com[1.2.3.29]: 250 DSN
    14  postfix/smtpd[14819]: < mx33.nospam.com[1.2.3.29]: MAIL FROM:<>
    15  postfix/smtpd[14819]: > mx33.nospam.com[1.2.3.29]: 250 2.1.0 Ok
    16  postfix/smtpd[14819]: < mx33.nospam.com[1.2.3.29]: RCPT TO:<mx33.nospam.com-1498650100-testing@targetdomain.de>
    17  postfix/smtpd[14819]: > mx33.nospam.com[1.2.3.29]: 450 4.1.1 <mx33.nospam.com-1498650100-testing@targetdomain.de>: Recipient address rejected: unverified address: User unknown in virtual alias table
    18  postfix/smtpd[14819]: < mx33.nospam.com[1.2.3.29]: RSET
    19  postfix/smtpd[14819]: > mx33.nospam.com[1.2.3.29]: 250 2.0.0 Ok
    20  postfix/smtpd[14819]: < mx33.nospam.com[1.2.3.29]: MAIL FROM:<>
    21  postfix/smtpd[14819]: > mx33.nospam.com[1.2.3.29]: 250 2.1.0 Ok
    22  postfix/smtpd[14819]: < mx33.nospam.com[1.2.3.29]: RCPT TO:<equivalencesszj0@targetdomain.de>
    23  postfix/smtpd[14819]: > mx33.nospam.com[1.2.3.29]: 450 4.1.1 <equivalencesszj0@targetdomain.de>: Recipient address rejected: unverified address: User unknown in virtual alias table
    24  postfix/smtpd[14819]: < mx33.nospam.com[1.2.3.29]: QUIT
    25  postfix/smtpd[14819]: > mx33.nospam.com[1.2.3.29]: 221 2.0.0 Bye

Mich wundert besonders Zeile 16. Warum will er eine E-Mail an den Empfänger mx33.nospam.com-1498650100-testing@targetdomain.de schicken/testen?

Für mich sieht das aus wie ein Fehler in deren Serverkonfiguration.
 
Last edited by a moderator:
Könnte was dran sein. Dann würde der Server sinnvollerweise nicht weitermachen, wenn die erste Adresse akzeptiert wird.
 
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