Feb 4 13:31:05 86915-88858 plesk_saslauthd[4101748]: failed mail authentication attempt for user 'rich' (password len=7)
Feb 4 13:31:05 86915-88858 postfix/smtpd[4122836]: warning: unknown[xx.xxx.xx.xxx]: SASL LOGIN authentication failed: authentication failure
Feb 4 13:31:05 86915-88858 postfix/smtpd[4122836]: disconnect from unknown[xx.xxx.xx.xxx] ehlo=1 auth=0/1 rset=1 quit=1 commands=3/4
Feb 4 13:31:14 86915-88858 plesk-sendmail[4123152]: S4123152: from=<buchhaltung@example.org> to=<Test Schnaeppchenpiet <buchhaltung@example.org>>
Feb 4 13:31:14 86915-88858 plesk-sendmail[4123153]: S4123152: add-from: stderr: SKIP
Feb 4 13:31:14 86915-88858 plesk-sendmail[4123153]: S4123152: check-quota: stderr: SKIP
Feb 4 13:31:14 86915-88858 plesk-sendmail[4123157]: S4123152: dk_sign: stderr: PASS
Feb 4 13:31:14 86915-88858 postfix/pickup[4117972]: 776E940340: uid=10001 from=<buchhaltung@example.org>
Feb 4 13:31:14 86915-88858 plesk-sendmail[4123165]: S4123165: from=<buchhaltung@example.org> to=<Max Mustermann <admin@example.org>>
Feb 4 13:31:14 86915-88858 postfix/cleanup[4123162]: 776E940340: message-id=<eb4c0b6f2b0fc002544fd3086b6efd45@test.example.org>
Feb 4 13:31:14 86915-88858 plesk-sendmail[4123167]: S4123165: add-from: stderr: SKIP
Feb 4 13:31:14 86915-88858 postfix/qmgr[3927155]: 776E940340: from=<buchhaltung@example.org>, size=42820, nrcpt=1 (queue active)
Feb 4 13:31:14 86915-88858 plesk-sendmail[4123167]: S4123165: check-quota: stderr: SKIP
Feb 4 13:31:14 86915-88858 plesk-sendmail[4123173]: S4123165: dk_sign: stderr: PASS