Stroller wrote: > Hi there, > > A customer of mine is, unfortunately, using BT Internet as her ISP, > and sending email via Postfix on Mac OS 10.4 > > It seems that she is not getting notification when mail is bounced > because this lame ISP rejects the "from" address of the bounce, and > another bounce is created. See the 946CA27AABB message below: > > Oct 20 10:22:21 freds-computer postfix/smtp[5906]: E7B8B27AAB6: > to=<[EMAIL PROTECTED]>, > relay=pop-smtp1-f.bt.mail.vip.ird.yahoo.com[217.146.188.192], > delay=29, status=bounced (host > pop-smtp1-f.bt.mail.vip.ird.yahoo.com[217.146.188.192] said: 530 > authentication required - Your email could not be sent. To fix this > you must make a simple change to your email (known as SMTP > authentication). For advice visit www.btyahoo.com/smtp (in reply to > MAIL FROM command)) > Oct 20 10:22:21 freds-computer postfix/qmgr[5905]: 946CA27AABB: > from=<>, size=52364, nrcpt=1 (queue active) > Oct 20 10:22:21 freds-computer postfix/qmgr[5905]: E7B8B27AAB6: removed > Oct 20 10:22:23 freds-computer postfix/smtp[5906]: 946CA27AABB: > to=<[EMAIL PROTECTED]>, relay=mail.btopenworld.com[217.146.188.192], > delay=2, status=bounced (host mail.btopenworld.com[217.146.188.192] > said: 553 From: address not verified; see > http://help.yahoo.com/l/us/yahoo/mail/original/manage/sendfrom-07.html (in > reply to MAIL FROM command)) > > I'll start poking at the SMTP authentication part in a moment, but > leaving that (message E7B8B27AAB6) aside completely, can anyone tell > me, please, how to change the from address of the bounce messages, > please? At least if she has notification of the failures she knows to > call me & I can take a look at the problem; as things stand she just > discovers after some days that the recipient has received no mail > from her. > The host mail.btopenworld.com is trying to use reject_unverified_sender (or equivalent) for the null sender. This is wrong and they need to fix it.
To get some notifications, look at notify_classes ( http://www.postfix.org/postconf.5.html#notify_classes ). Suggest 'notify_classes = resource, software, 2bounce' until you solve the real first problem and contact the source of the 2nd. 2bounce allows double bounces to be saved to a mailbox. The 2bounce recipient can be defined by 2bounce_notice_recipient BTW.. btopenworld.com use yahoo MXs: [EMAIL PROTECTED] ~ $ host btopenworld.com btopenworld.com has address 213.121.143.193 btopenworld.com mail is handled by 30 mx2.bt.mail.yahoo.com. btopenworld.com mail is handled by 20 mx1.bt.mail.yahoo.com. The original message issue, that caused the bounce, can be solved by using SASL on the smtp client to begin with. See http://www.postfix.org/SASL_README.html#client_sasl for details. Brian
