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Old 07-27-2003, 09:03 AM   #1
thomas_hk03
LQ Newbie
 
Registered: Jul 2003
Posts: 1

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Unhappy SMTP by SendMail


Hi,

I am setting an email server using SendMail on RedHat Linux 9. I can receive and email from both internal and external network. However, I cannot send the email to other email accounts such as xxx@hotmail.com. After I check the /etc/log/mail/log.

The message is

.............. stat=Deferred: Connection refused...........

Anyone came across this problem and how to solve this?


Thanks.

Thomas
 
Old 07-27-2003, 10:17 AM   #2
stickman
Senior Member
 
Registered: Sep 2002
Location: Nashville, TN
Posts: 1,552

Rep: Reputation: 53
Can you send email to any other external domains such as yahoo.com? I've noticed a few other posts that mention Hotmail so I wonder if they're doing some agressive spam blocking.
 
Old 07-27-2003, 10:57 AM   #3
fancypiper
LQ Guru
 
Registered: Feb 2003
Location: Sparta, NC USA
Distribution: Ubuntu 10.04
Posts: 5,141

Rep: Reputation: 60
# Common e-mail tools
sendmail - postfix - sends mail to local users (and internet when configured correctly)
fetchmail - gets mail from internet accounts (non-Hotmail type)
procmail - sorts and delivers into separate mailboxes
mutt - mail client that sucks less than all the others
Email the Linux Way
Suresh Ramasubramanian's email guide
The Linux Mail User HOWTO
The Linux Electronic Mail Administrator HOWTO
SquirrelMail web mail
Why use Hotmail when there is LinuxMail?
Gotmail, a utility to download mail from Hotmail type accounts

I found this file to configure sendmail on Suresh Ramasubramanian's email guide
Code:
divert(-1)
dnl This is the macro config file used to generate sendmail.cf
dnl file. If you modify this file you will have to regenerate 
dnl sendmail.cf by running this macro config through the m4
dnl preprocessor:
dnl
dnl        m4 /home/fancy/Documents/sendmail.mc > /etc/sendmail.cf <--Change to your path
dnl
dnl You will need to have the sendmail-cf RPM installed for this
dnl to work, if you use an rpm build of sendmail
dnl
dnl include(`../m4/cf.m4')
dnl
dnl If you compile sendmail from a tarball, use the include above.
dnl In this setup, you should create the file as cf/cf/config.mc 
dnl (in the sendmail source tree: eg. /usr/src/sendmail-8.11.6/cf/cf
dnl Now give the command "sh Build config.cf".  Now copy the file
dnl config.cf as /etc/mail/sendmail.cf (please backup first!)
dnl
dnl If you are using the RPM build of sendmail, use the 
dnl include statement given below instead
dnl
include(`/usr/share/sendmail-cf/m4/cf.m4')
define(`confDEF_USER_ID',``8:12'')
OSTYPE(`linux')
undefine(`UUCP_RELAY')
undefine(`BITNET_RELAY')
define(`confCF_VERSION',`dialup-1.3')
define(`SMART_HOST', `smtp.yourisp.com') <--Change this
define(`confAUTO_REBUILD')
define(`confTO_CONNECT', `1m')
define(`confTO_IDENT',0)
define(`confTRY_NULL_MX_LIST',true)
define(`confDONT_PROBE_INTERFACES',true)
define(`confCON_EXPENSIVE',true)
define(`confDELIVERY_MODE', `queued')
define(`PROCMAIL_MAILER_PATH',`/usr/bin/procmail')
define(`ALIAS_FILE',`/etc/mail/aliases')
MASQUERADE_AS(`yourisp.com') <--Change this
FEATURE(`masquerade_envelope')
FEATURE(`smrsh',`/usr/sbin/smrsh')
FEATURE(`mailertable',`hash -o /etc/mail/mailertable')
FEATURE(`virtusertable',`hash -o /etc/mail/virtusertable')
FEATURE(redirect)
FEATURE(always_add_domain)
FEATURE(use_cw_file)
FEATURE(`use_ct_file')
FEATURE(local_procmail)
MAILER(smtp)
MAILER(procmail)
FEATURE(`access_db')
FEATURE(`blacklist_recipients')
FEATURE(`accept_unresolvable_domains')
FEATURE(`accept_unqualified_senders')
dnl FEATURE(`relay_based_on_MX')
# Redhat links
RedHat Linux Manuals
Get your mp3 support here
Maximum RPM
rpmfind
Easier software management: apt4rpm - Red Carpet
RedHat 8.0 Tips & Tricks

# Redhat 7.3 down configuration commands
setup leads to several configuration tools

# Redhat 7.3 up configuration commands
Configure soundcard:
redhat-config-soundcard
Configure X server:
redhat-config-xfree86
Configure network:
redhat-config-network
Manage software:
redhat-config-packages

# Handling NTFS
New Technology FileSystem (NTFS) HOWTOs
Linux NTFS project
 
Old 07-27-2003, 11:46 AM   #4
mrhyde
Member
 
Registered: Jul 2003
Location: Europe
Posts: 198

Rep: Reputation: 30
Some MTA's such as qmail use control files to secure against relaying, if the domain is not in the control file you can't send mail to it! There could be a control file such as this with sendmail, I am a qmail administrator so I'm just guessing!!
 
Old 07-28-2003, 01:20 PM   #5
Corin
Member
 
Registered: Jul 2003
Location: Jette, Brussels Hoofstedelijk Gewest
Distribution: Debian sid, RedHat 9, Suse 8.2
Posts: 446

Rep: Reputation: 31
Are you on a dialup/DSL/cable subscriber connection to the InterNet and sending the e-mail directly from your machine to hotmail?

If so then your host will have a name such as

1-23-dialup-DSL-cable-something.yourISP.COM

When some sites see these types of names indicating an obvious temporary type host, they will refuse to accept the incoming mail.

The only way around this problem is to use your ISP mail machine as a smarthost relay.

Of course if HotMail or whoever has put a block on the entire domain of your ISP, then that is not going to work either.
 
Old 08-06-2003, 11:53 PM   #6
paddlehead
LQ Newbie
 
Registered: Aug 2003
Posts: 1

Rep: Reputation: 0
Can you successfully email an AOL account?? AOL implements SPAM blocking including "ping -a x.x.x.x" (your IP address). If the resulting host name corresponding to that IP address is not on their list, your email will be refused (exactly what Corin is suggesting in prev post). Maybe Hotmail is doing the same thing. I've read that a work-around is to have your server relay all of your outgoing messages to whatever SMTP server is legitimately available from your ISP. You would be a legitimate user sending out email (from your ISP's SMTP server's point of view) ... then when it gets to AOL (or Hotmail, if they are doing the same thing) when they do "ping -a x.x.x.x" it will result coming from a sanctioned SMTP host and they should allow the email.

Last edited by paddlehead; 08-06-2003 at 11:54 PM.
 
  


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