sasl problems with SBC Yahoo DSL

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sasl problems with SBC Yahoo DSL

Gopalakrishnan Raman-2
Hi all
Recently my DSL provider SBC-Yahoo started requiring authentication
to send mail through their SMTP relay server. I've followed all the
instructions but am getting the errors below in /var/log/maillog.
I've attached outputs of 'saslfinger -c' and contents of my 'main.cf'
and /etc/postfix/sasl_password

Please help. Haven't been able to send mail for a week
Thanks
-gopal

Errors in /var/log/maillog
--------------------------
Jun 10 10:30:47 athlon postfix/smtp[17682]: warning: SASL authentication failure: No worthy mechs found
Jun 10 10:30:47 athlon postfix/smtp[17682]: 4BEE53D0850: to=<[hidden email]>, relay=smtp.sbc.mail.yahoo4.akadns.net[69.147.64.31], delay=0, status=deferred (Authentication failed: cannot SASL authenticate to server smtp.sbc.mail.yahoo4.akadns.net[69.147.64.31]: no mechanism available)

Output of 'saslfinger -c'
------------------------------------
saslfinger -c
saslfinger - postfix Cyrus sasl configuration Tue Jun 10 10:31:25 PDT 2008
version: 1.0.2
mode: client-side SMTP AUTH

-- basics --
Postfix: 2.2.3
System: Red Hat Linux release 9 (Shrike)

-- smtp is linked to --
        libsasl2.so.2 => /usr/lib/libsasl2.so.2 (0x40031000)

-- active SMTP AUTH and TLS parameters for smtp --
relayhost = smtp.att.yahoo.com
smtp_sasl_auth_enable = yes
smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd


-- listing of /usr/lib/sasl --
total 460
drwxr-xr-x    2 root     root         4096 Dec 18  2003 .
drwxr-xr-x  144 root     root        69632 Mar 10  2007 ..
-rw-r--r--    1 root     root         4524 Jan 25  2003 libanonymous.a
-rwxr-xr-x    1 root     root          771 Jan 25  2003 libanonymous.la
-rwxr-xr-x    1 root     root         5936 Jan 25  2003 libanonymous.so
-rwxr-xr-x    1 root     root         5936 Jan 25  2003 libanonymous.so.1
-rwxr-xr-x    1 root     root         5936 Jan 25  2003 libanonymous.so.1.0.17
-rw-r--r--    1 root     root        10716 Jan 25  2003 libcrammd5.a
-rwxr-xr-x    1 root     root          757 Jan 25  2003 libcrammd5.la
-rwxr-xr-x    1 root     root        11012 Jan 25  2003 libcrammd5.so
-rwxr-xr-x    1 root     root        11012 Jan 25  2003 libcrammd5.so.1
-rwxr-xr-x    1 root     root        11012 Jan 25  2003 libcrammd5.so.1.0.19
-rw-r--r--    1 root     root        35722 Jan 25  2003 libdigestmd5.a
-rwxr-xr-x    1 root     root          780 Jan 25  2003 libdigestmd5.la
-rwxr-xr-x    1 root     root        30728 Jan 25  2003 libdigestmd5.so
-rwxr-xr-x    1 root     root        30728 Jan 25  2003 libdigestmd5.so.0
-rwxr-xr-x    1 root     root        30728 Jan 25  2003 libdigestmd5.so.0.0.20
-rw-r--r--    1 root     root        12364 Jan 25  2003 libgssapiv2.a
-rwxr-xr-x    1 root     root          806 Jan 25  2003 libgssapiv2.la
-rwxr-xr-x    1 root     root        13072 Jan 25  2003 libgssapiv2.so
-rwxr-xr-x    1 root     root        13072 Jan 25  2003 libgssapiv2.so.1
-rwxr-xr-x    1 root     root        13072 Jan 25  2003 libgssapiv2.so.1.0.19
-rw-r--r--    1 root     root         7292 Jan 25  2003 liblogin.a
-rwxr-xr-x    1 root     root          755 Jan 25  2003 liblogin.la
-rwxr-xr-x    1 root     root         8212 Jan 25  2003 liblogin.so
-rwxr-xr-x    1 root     root         8212 Jan 25  2003 liblogin.so.0
-rwxr-xr-x    1 root     root         8212 Jan 25  2003 liblogin.so.0.0.7
-rw-r--r--    1 root     root         6840 Jan 25  2003 libplain.a
-rwxr-xr-x    1 root     root          757 Jan 25  2003 libplain.la
-rwxr-xr-x    1 root     root         7900 Jan 25  2003 libplain.so
-rwxr-xr-x    1 root     root         7900 Jan 25  2003 libplain.so.1
-rwxr-xr-x    1 root     root         7900 Jan 25  2003 libplain.so.1.0.16
-rw-r--r--    1 root     root           19 Feb 24  2003 Sendmail.conf
-rw-r--r--    1 root     root           23 Feb 24  2003 smtpd.conf

-- listing of /usr/lib/sasl2 --
total 720
drwxr-xr-x    2 root     root         4096 Dec 18  2003 .
drwxr-xr-x  144 root     root        69632 Mar 10  2007 ..
-rw-r--r--    1 root     root        13938 Jan 25  2003 libanonymous.a
-rwxr-xr-x    1 root     root          797 Jan 25  2003 libanonymous.la
-rwxr-xr-x    1 root     root        12400 Jan 25  2003 libanonymous.so
-rwxr-xr-x    1 root     root        12400 Jan 25  2003 libanonymous.so.2
-rwxr-xr-x    1 root     root        12400 Jan 25  2003 libanonymous.so.2.0.10
-rw-r--r--    1 root     root        17320 Jan 25  2003 libcrammd5.a
-rwxr-xr-x    1 root     root          783 Jan 25  2003 libcrammd5.la
-rwxr-xr-x    1 root     root        15172 Jan 25  2003 libcrammd5.so
-rwxr-xr-x    1 root     root        15172 Jan 25  2003 libcrammd5.so.2
-rwxr-xr-x    1 root     root        15172 Jan 25  2003 libcrammd5.so.2.0.10
-rw-r--r--    1 root     root        53250 Jan 25  2003 libdigestmd5.a
-rwxr-xr-x    1 root     root          806 Jan 25  2003 libdigestmd5.la
-rwxr-xr-x    1 root     root        43544 Jan 25  2003 libdigestmd5.so
-rwxr-xr-x    1 root     root        43544 Jan 25  2003 libdigestmd5.so.2
-rwxr-xr-x    1 root     root        43544 Jan 25  2003 libdigestmd5.so.2.0.10
-rw-r--r--    1 root     root        23198 Jan 25  2003 libgssapiv2.a
-rwxr-xr-x    1 root     root          832 Jan 25  2003 libgssapiv2.la
-rwxr-xr-x    1 root     root        20892 Jan 25  2003 libgssapiv2.so
-rwxr-xr-x    1 root     root        20892 Jan 25  2003 libgssapiv2.so.2
-rwxr-xr-x    1 root     root        20892 Jan 25  2003 libgssapiv2.so.2.0.10
-rw-r--r--    1 root     root        14380 Jan 25  2003 liblogin.a
-rwxr-xr-x    1 root     root          769 Jan 25  2003 liblogin.la
-rwxr-xr-x    1 root     root        12816 Jan 25  2003 liblogin.so
-rwxr-xr-x    1 root     root        12816 Jan 25  2003 liblogin.so.2
-rwxr-xr-x    1 root     root        12816 Jan 25  2003 liblogin.so.2.0.10
-rw-r--r--    1 root     root        14252 Jan 25  2003 libplain.a
-rwxr-xr-x    1 root     root          769 Jan 25  2003 libplain.la
-rwxr-xr-x    1 root     root        12788 Jan 25  2003 libplain.so
-rwxr-xr-x    1 root     root        12788 Jan 25  2003 libplain.so.2
-rwxr-xr-x    1 root     root        12788 Jan 25  2003 libplain.so.2.0.10
-rw-r--r--    1 root     root        19680 Jan 25  2003 libsasldb.a
-rwxr-xr-x    1 root     root          798 Jan 25  2003 libsasldb.la
-rwxr-xr-x    1 root     root        15772 Jan 25  2003 libsasldb.so
-rwxr-xr-x    1 root     root        15772 Jan 25  2003 libsasldb.so.2
-rwxr-xr-x    1 root     root        15772 Jan 25  2003 libsasldb.so.2.0.10


-- permissions for /etc/postfix/sasl_passwd --
-rw-------    1 root     root           38 Jun 10 10:29 /etc/postfix/sasl_passwd

-- permissions for /etc/postfix/sasl_passwd.db --
-rw-------    1 root     root        12288 Jun 10 10:29 /etc/postfix/sasl_passwd.db

/etc/postfix/sasl_passwd.db is up to date.

-- active services in /etc/postfix/master.cf --
# service type  private unpriv  chroot  wakeup  maxproc command + args
#               (yes)   (yes)   (yes)   (never) (50)
smtp    inet    n       -       n       -       -       smtpd
pickup  fifo    n       -       n       60      1       pickup
cleanup unix    n       -       n       -       0       cleanup
qmgr    fifo    n       -       n       300     1       nqmgr
rewrite unix    -       -       n       -       -       trivial-rewrite
bounce  unix    -       -       n       -       0       bounce
defer   unix    -       -       n       -       0       bounce
flush   unix    n       -       n       1000?   0       flush
smtp    unix    -       -       n       -       -       smtp
showq   unix    n       -       n       -       -       showq
error   unix    -       -       n       -       -       error
local     unix  -       n       n       -       -       local
virtual unix    -       n       n       -       -       virtual
lmtp    unix    -       -       n       -       -       lmtp
cyrus     unix  -       n       n       -       -       pipe
  flags=R user=cyrus argv=/cyrus/bin/deliver -e -m ${extension} ${user}
uucp      unix  -       n       n       -       -       pipe
  flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail.postfix ($recipient)
ifmail    unix  -       n       n       -       -       pipe
  flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient)
bsmtp     unix  -       n       n       -       -       pipe
  flags=Fq. user=foo argv=/usr/local/sbin/bsmtp -f $sender $nexthop $recipient
relay     unix  -       -       n       -       -       smtp
trace     unix  -       -       n       -       0       bounce
verify    unix  -       -       n       -       1       verify
proxymap  unix  -       -       n       -       -       proxymap
anvil     unix  -       -       n       -       1       anvil
scache    unix  -       -       n       -       1       scache
discard   unix  -       -       n       -       -       discard
tlsmgr    unix  -       -       n       1000?   1       tlsmgr

-- mechanisms on smtp.att.yahoo.com --
250-AUTH LOGIN PLAIN XYMCOOKIE



-- end of saslfinger output --

Contents of main.cf
-------------------
relayhost = smtp.att.yahoo.com
#relayhost = smtp.sbcglobal.yahoo.com
smtp_sasl_auth_enable = yes
#smtp_sasl_security_options =
smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd

Contents of sasl_passwd
-----------------------
smtp.att.yahoo.com  rgkwustl:secret-not-shown
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Re: sasl problems with SBC Yahoo DSL

Brian Evans - Postfix List
Gopalakrishnan Raman wrote:

> Hi all
> Recently my DSL provider SBC-Yahoo started requiring authentication
> to send mail through their SMTP relay server. I've followed all the
> instructions but am getting the errors below in /var/log/maillog.
> I've attached outputs of 'saslfinger -c' and contents of my 'main.cf'
> and /etc/postfix/sasl_password
>
> Please help. Haven't been able to send mail for a week
> Thanks
> -gopal
>
> Errors in /var/log/maillog
> --------------------------
> Jun 10 10:30:47 athlon postfix/smtp[17682]: warning: SASL authentication failure: No worthy mechs found
> Jun 10 10:30:47 athlon postfix/smtp[17682]: 4BEE53D0850: to=<[hidden email]>, relay=smtp.sbc.mail.yahoo4.akadns.net[69.147.64.31], delay=0, status=deferred (Authentication failed: cannot SASL authenticate to server smtp.sbc.mail.yahoo4.akadns.net[69.147.64.31]: no mechanism available)
>
> Output of 'saslfinger -c'
> ------------------------------------
> saslfinger -c
> saslfinger - postfix Cyrus sasl configuration Tue Jun 10 10:31:25 PDT 2008
> version: 1.0.2
> mode: client-side SMTP AUTH
>
> -- basics --
> Postfix: 2.2.3
> System: Red Hat Linux release 9 (Shrike)
>
> -- smtp is linked to --
>         libsasl2.so.2 => /usr/lib/libsasl2.so.2 (0x40031000)
>
> -- active SMTP AUTH and TLS parameters for smtp --
> relayhost = smtp.att.yahoo.com
> smtp_sasl_auth_enable = yes
> smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
>  
[cut]
> -- active services in /etc/postfix/master.cf --
>  
[cut]
> smtp    unix    -       -       n       -       -       smtp
[cut]

> -- mechanisms on smtp.att.yahoo.com --
> 250-AUTH LOGIN PLAIN XYMCOOKIE
>  
Note: these are all "plaintext" methods.

>
>
> -- end of saslfinger output --
>
> Contents of main.cf
> -------------------
> relayhost = smtp.att.yahoo.com
> #relayhost = smtp.sbcglobal.yahoo.com
> smtp_sasl_auth_enable = yes
> #smtp_sasl_security_options =
>  
You need "smtp_sasl_security_options = noanonymous" as per
http://www.postfix.org/SASL_README.html#client_sasl.
See "Workaround #1".

Brian
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RE: sasl problems with SBC Yahoo DSL

Gopalakrishnan Raman-2
In reply to this post by Gopalakrishnan Raman-2
Hi All
Thanks, my problem got solved ! All it took was a line in main.cf
smtp_sasl_security_options = noanonymous

Then I had to do 2 more steps because of my ISP (SBC Yahoo)
1. In the sasl_passwd file, I had to use my SBC-Yahoo E-mail ID as my
   username. The password is the same as the password of my Yahoo account
/etc/postfix/sasl_passwd
smtp.att.yahoo.com [hidden email]:<password-not-shown>
2. Once my authentication worked, the mail still bounced but this time I
   got an E-mail from SBC-Yahoo asking me to visit a URL and verify my
   originating e-mail ID which is in my personal domain rgopal.com. After
   this step, I'm able to relay my outgoing E-mail successfully

Thanks for all who answered. Really appreciate it.
Cheers
-gopal

> -----Original Message-----
> From: [hidden email]
> [mailto:[hidden email]]On Behalf Of Gopalakrishnan
> Raman
> Sent: Tuesday, June 10, 2008 9:23 AM
> To: [hidden email]
> Cc: [hidden email]
> Subject: sasl problems with SBC Yahoo DSL
>
>
> Hi all
> Recently my DSL provider SBC-Yahoo started requiring authentication
> to send mail through their SMTP relay server. I've followed all the
> instructions but am getting the errors below in /var/log/maillog.
> I've attached outputs of 'saslfinger -c' and contents of my 'main.cf'
> and /etc/postfix/sasl_password
>
> Please help. Haven't been able to send mail for a week
> Thanks
> -gopal
>
> Errors in /var/log/maillog
> --------------------------
> Jun 10 10:30:47 athlon postfix/smtp[17682]: warning: SASL
> authentication failure: No worthy mechs found
> Jun 10 10:30:47 athlon postfix/smtp[17682]: 4BEE53D0850:
> to=<[hidden email]>,
> relay=smtp.sbc.mail.yahoo4.akadns.net[69.147.64.31], delay=0,
> status=deferred (Authentication failed: cannot SASL
> authenticate to server
> smtp.sbc.mail.yahoo4.akadns.net[69.147.64.31]: no mechanism available)
>
> Output of 'saslfinger -c'
> ------------------------------------
> saslfinger -c
> saslfinger - postfix Cyrus sasl configuration Tue Jun 10
> 10:31:25 PDT 2008
> version: 1.0.2
> mode: client-side SMTP AUTH
>
> -- basics --
> Postfix: 2.2.3
> System: Red Hat Linux release 9 (Shrike)
>
> -- smtp is linked to --
>         libsasl2.so.2 => /usr/lib/libsasl2.so.2 (0x40031000)
>
> -- active SMTP AUTH and TLS parameters for smtp --
> relayhost = smtp.att.yahoo.com
> smtp_sasl_auth_enable = yes
> smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
>
>
> -- listing of /usr/lib/sasl --
> total 460
> drwxr-xr-x    2 root     root         4096 Dec 18  2003 .
> drwxr-xr-x  144 root     root        69632 Mar 10  2007 ..
> -rw-r--r--    1 root     root         4524 Jan 25  2003 libanonymous.a
> -rwxr-xr-x    1 root     root          771 Jan 25  2003
> libanonymous.la
> -rwxr-xr-x    1 root     root         5936 Jan 25  2003
> libanonymous.so
> -rwxr-xr-x    1 root     root         5936 Jan 25  2003
> libanonymous.so.1
> -rwxr-xr-x    1 root     root         5936 Jan 25  2003
> libanonymous.so.1.0.17
> -rw-r--r--    1 root     root        10716 Jan 25  2003 libcrammd5.a
> -rwxr-xr-x    1 root     root          757 Jan 25  2003 libcrammd5.la
> -rwxr-xr-x    1 root     root        11012 Jan 25  2003 libcrammd5.so
> -rwxr-xr-x    1 root     root        11012 Jan 25  2003
> libcrammd5.so.1
> -rwxr-xr-x    1 root     root        11012 Jan 25  2003
> libcrammd5.so.1.0.19
> -rw-r--r--    1 root     root        35722 Jan 25  2003 libdigestmd5.a
> -rwxr-xr-x    1 root     root          780 Jan 25  2003
> libdigestmd5.la
> -rwxr-xr-x    1 root     root        30728 Jan 25  2003
> libdigestmd5.so
> -rwxr-xr-x    1 root     root        30728 Jan 25  2003
> libdigestmd5.so.0
> -rwxr-xr-x    1 root     root        30728 Jan 25  2003
> libdigestmd5.so.0.0.20
> -rw-r--r--    1 root     root        12364 Jan 25  2003 libgssapiv2.a
> -rwxr-xr-x    1 root     root          806 Jan 25  2003 libgssapiv2.la
> -rwxr-xr-x    1 root     root        13072 Jan 25  2003 libgssapiv2.so
> -rwxr-xr-x    1 root     root        13072 Jan 25  2003
> libgssapiv2.so.1
> -rwxr-xr-x    1 root     root        13072 Jan 25  2003
> libgssapiv2.so.1.0.19
> -rw-r--r--    1 root     root         7292 Jan 25  2003 liblogin.a
> -rwxr-xr-x    1 root     root          755 Jan 25  2003 liblogin.la
> -rwxr-xr-x    1 root     root         8212 Jan 25  2003 liblogin.so
> -rwxr-xr-x    1 root     root         8212 Jan 25  2003 liblogin.so.0
> -rwxr-xr-x    1 root     root         8212 Jan 25  2003
> liblogin.so.0.0.7
> -rw-r--r--    1 root     root         6840 Jan 25  2003 libplain.a
> -rwxr-xr-x    1 root     root          757 Jan 25  2003 libplain.la
> -rwxr-xr-x    1 root     root         7900 Jan 25  2003 libplain.so
> -rwxr-xr-x    1 root     root         7900 Jan 25  2003 libplain.so.1
> -rwxr-xr-x    1 root     root         7900 Jan 25  2003
> libplain.so.1.0.16
> -rw-r--r--    1 root     root           19 Feb 24  2003 Sendmail.conf
> -rw-r--r--    1 root     root           23 Feb 24  2003 smtpd.conf
>
> -- listing of /usr/lib/sasl2 --
> total 720
> drwxr-xr-x    2 root     root         4096 Dec 18  2003 .
> drwxr-xr-x  144 root     root        69632 Mar 10  2007 ..
> -rw-r--r--    1 root     root        13938 Jan 25  2003 libanonymous.a
> -rwxr-xr-x    1 root     root          797 Jan 25  2003
> libanonymous.la
> -rwxr-xr-x    1 root     root        12400 Jan 25  2003
> libanonymous.so
> -rwxr-xr-x    1 root     root        12400 Jan 25  2003
> libanonymous.so.2
> -rwxr-xr-x    1 root     root        12400 Jan 25  2003
> libanonymous.so.2.0.10
> -rw-r--r--    1 root     root        17320 Jan 25  2003 libcrammd5.a
> -rwxr-xr-x    1 root     root          783 Jan 25  2003 libcrammd5.la
> -rwxr-xr-x    1 root     root        15172 Jan 25  2003 libcrammd5.so
> -rwxr-xr-x    1 root     root        15172 Jan 25  2003
> libcrammd5.so.2
> -rwxr-xr-x    1 root     root        15172 Jan 25  2003
> libcrammd5.so.2.0.10
> -rw-r--r--    1 root     root        53250 Jan 25  2003 libdigestmd5.a
> -rwxr-xr-x    1 root     root          806 Jan 25  2003
> libdigestmd5.la
> -rwxr-xr-x    1 root     root        43544 Jan 25  2003
> libdigestmd5.so
> -rwxr-xr-x    1 root     root        43544 Jan 25  2003
> libdigestmd5.so.2
> -rwxr-xr-x    1 root     root        43544 Jan 25  2003
> libdigestmd5.so.2.0.10
> -rw-r--r--    1 root     root        23198 Jan 25  2003 libgssapiv2.a
> -rwxr-xr-x    1 root     root          832 Jan 25  2003 libgssapiv2.la
> -rwxr-xr-x    1 root     root        20892 Jan 25  2003 libgssapiv2.so
> -rwxr-xr-x    1 root     root        20892 Jan 25  2003
> libgssapiv2.so.2
> -rwxr-xr-x    1 root     root        20892 Jan 25  2003
> libgssapiv2.so.2.0.10
> -rw-r--r--    1 root     root        14380 Jan 25  2003 liblogin.a
> -rwxr-xr-x    1 root     root          769 Jan 25  2003 liblogin.la
> -rwxr-xr-x    1 root     root        12816 Jan 25  2003 liblogin.so
> -rwxr-xr-x    1 root     root        12816 Jan 25  2003 liblogin.so.2
> -rwxr-xr-x    1 root     root        12816 Jan 25  2003
> liblogin.so.2.0.10
> -rw-r--r--    1 root     root        14252 Jan 25  2003 libplain.a
> -rwxr-xr-x    1 root     root          769 Jan 25  2003 libplain.la
> -rwxr-xr-x    1 root     root        12788 Jan 25  2003 libplain.so
> -rwxr-xr-x    1 root     root        12788 Jan 25  2003 libplain.so.2
> -rwxr-xr-x    1 root     root        12788 Jan 25  2003
> libplain.so.2.0.10
> -rw-r--r--    1 root     root        19680 Jan 25  2003 libsasldb.a
> -rwxr-xr-x    1 root     root          798 Jan 25  2003 libsasldb.la
> -rwxr-xr-x    1 root     root        15772 Jan 25  2003 libsasldb.so
> -rwxr-xr-x    1 root     root        15772 Jan 25  2003 libsasldb.so.2
> -rwxr-xr-x    1 root     root        15772 Jan 25  2003
> libsasldb.so.2.0.10
>
>
> -- permissions for /etc/postfix/sasl_passwd --
> -rw-------    1 root     root           38 Jun 10 10:29
> /etc/postfix/sasl_passwd
>
> -- permissions for /etc/postfix/sasl_passwd.db --
> -rw-------    1 root     root        12288 Jun 10 10:29
> /etc/postfix/sasl_passwd.db
>
> /etc/postfix/sasl_passwd.db is up to date.
>
> -- active services in /etc/postfix/master.cf --
> # service type  private unpriv  chroot  wakeup  maxproc command + args
> #               (yes)   (yes)   (yes)   (never) (50)
> smtp    inet    n       -       n       -       -       smtpd
> pickup  fifo    n       -       n       60      1       pickup
> cleanup unix    n       -       n       -       0       cleanup
> qmgr    fifo    n       -       n       300     1       nqmgr
> rewrite unix    -       -       n       -       -      
> trivial-rewrite
> bounce  unix    -       -       n       -       0       bounce
> defer   unix    -       -       n       -       0       bounce
> flush   unix    n       -       n       1000?   0       flush
> smtp    unix    -       -       n       -       -       smtp
> showq   unix    n       -       n       -       -       showq
> error   unix    -       -       n       -       -       error
> local     unix  -       n       n       -       -       local
> virtual unix    -       n       n       -       -       virtual
> lmtp    unix    -       -       n       -       -       lmtp
> cyrus     unix  -       n       n       -       -       pipe
>   flags=R user=cyrus argv=/cyrus/bin/deliver -e -m
> ${extension} ${user}
> uucp      unix  -       n       n       -       -       pipe
>   flags=Fqhu user=uucp argv=uux -r -n -z -a$sender -
> $nexthop!rmail.postfix ($recipient)
> ifmail    unix  -       n       n       -       -       pipe
>   flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop
> ($recipient)
> bsmtp     unix  -       n       n       -       -       pipe
>   flags=Fq. user=foo argv=/usr/local/sbin/bsmtp -f $sender
> $nexthop $recipient
> relay     unix  -       -       n       -       -       smtp
> trace     unix  -       -       n       -       0       bounce
> verify    unix  -       -       n       -       1       verify
> proxymap  unix  -       -       n       -       -       proxymap
> anvil     unix  -       -       n       -       1       anvil
> scache    unix  -       -       n       -       1       scache
> discard   unix  -       -       n       -       -       discard
> tlsmgr    unix  -       -       n       1000?   1       tlsmgr
>
> -- mechanisms on smtp.att.yahoo.com --
> 250-AUTH LOGIN PLAIN XYMCOOKIE
>
>
>
> -- end of saslfinger output --
>
> Contents of main.cf
> -------------------
> relayhost = smtp.att.yahoo.com
> #relayhost = smtp.sbcglobal.yahoo.com
> smtp_sasl_auth_enable = yes
> #smtp_sasl_security_options =
> smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
>
> Contents of sasl_passwd
> -----------------------
> smtp.att.yahoo.com  rgkwustl:secret-not-shown
>