Exim: Unable To Send Mail W/ New Users

Mar 11, 2008

I installed exim and have been able to successfully use it as an smtp server. My test setup was as follows:

email client uses smtp.MYSERVER.com, my login, and password

The email is successfully forwarded to the appropriate recipient. However, when I create a new user, and test it's email capabilities, it does not work. I get a 535 error:

535 Incorrect authentication data

I have double checked the login and password, and I've tried this on multiple accounts. Is there an issue with how I'm creating the users? (useradd)

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Unable To Send Mail

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I'm using a basic PHP script on my website, but it will not send mail out. I know the script works, I use it on my other websites (which I do not host).

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Just started to have problems sending emails out but no problem receiving.

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What do you guys recommend? Sending a few thousand emails a day for a month? Are there any services dedicated to sending emails in bulk?

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UK Users Unable To Connect To One Of My Websites

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Where should I even start looking? It appears to only be with overseas users since none of the US and Canadian users have any issues with either domains or their subdomains.

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Exim Send Errors

Feb 28, 2007

I'm getting this email errors (cpanel box)

Code:
2007-02-28 16:36:51 1HMXPn-0005P3-Ea == user@recipient.com (user@senderlocal.com) <user@senderlocal.com> R=lookuphost T=remote_smtp defer (-53): retry time not reached for any host
2007-02-28 16:41:25 1HMXTl-0005zF-C0 => user@recipient.com (user@senderlocal.com, user@senderlocal.com) <news@senderlocal.com> F=<dont@orfa.com> P=<dont@orfa.com> R=lookuphost T=remote_smtp S=11767 H=c.mx.mail.yahoo.com [xxx.142.237.182]:25 C="250 ok dirdel" QT=28s DT=1s
2007-02-28 16:41:27 1HMXPn-0005P3-Ea => user@recipient.com (user@senderlocal.com) <user@senderlocal.com> F=<bounce-flnl-35375142@mx01.castlemountains.com> P=<bounce-flnl-35375142@mx01.castlemountains.com> R=lookuphost T=remote_smtp S=5503 H=c.mx.mail.yahoo.com [xxx.142.237.182]:-1* C="250 ok dirdel" QT=4m36s DT=1s
2007-02-28 16:41:27 1HMXOJ-0005Dm-Fg == user@recipient.com (user@senderlocal.com, user@senderlocal.com) <freeclipart@senderlocal.com> R=lookuphost T=remote_smtp defer (-46): SMTP error from remote mail server after end of data: host c.mx.mail.yahoo.com [xxx.142.237.182]: 451 Message temporarily deferred - [170]

Just now I ran...

exim_tidydb -t 1m /var/spool/exim wait-remote_smtp
exim_tidydb -t 1m /var/spool/exim retry

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Block Users Sending Over Exim Limits

Mar 2, 2008

on whm/Cpanel I have set max emails per hour limit to 250 for the server, but when a user tries to send thousands of emails, the server still accepts them (they are placed in queue but not delivered) and load spikes.

I am wondering is there is a way for exim to reject those emails when the user attempts to do so.

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Unable To Set Background For Terminal Service Users

May 26, 2007

I am unable to set the background for the users on a terminal server.

The server is running Windows server 2003 R2 64 bit Enterprise edition.

I have setup the background path correctly in the group policy for the ou where the users are located. However the background does not load. I have also enabled Active Desktop in the terminal services configuration manager.

Also when I try to set the background manually as the administrator, everything is grey and I am unable to set the background. I have tried to start the Themes service but this does not resvolve the problem. Do anybody here have a suggestion on why I am unable to set the background even on the administrator user manually? (the administrator user does not have any group policies activated).

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Deny Access To Exim For Free Trial Users

Jul 18, 2007

INTRODUCTION

As owner of a hosting provider company, I face the problem of abusive users almost every day. More than 90% of all abuse on my server comes from free trial accounts. I offer free trial access to my servers for people who want to try things out before they purchase a hosting package, but off course this attracts spammers. To prevent trial users from using my server for spamming purposes, I modified my exim.pl file to prevent trial users from accessing the Exim mail server.

Please note that this tutorial has been written for cPanel servers. If you want to use it on a server with a different control panel, you'll need to modify the cpgetpack.c source. If you do so, please share your work with the community by posting it in a reply here.

STEP ONE

First youíll need to download, compile and install my cpgetpack.c application. Hereís how:

Code:
gcc cpgetpack.c -o cpgetpack
mv cpgetpack /usr/bin/
chown cpanel:cpanel /usr/bin/cpgetpack
chmod +s /usr/bin/cpgetpack
STEP TWO

Now open the /etc/exim.pl file in your favorite text editor (make a backup first) and look for the following inside the checkuserpass subroutine:

Code:
$trueowner =~ s////g;
$trueowner =~ s/..//g;
if (isdemo(${trueowner})) {
return('no');
}
Below, paste the following code:

Code:
my $name = getpwuid($uid);
open(UP, "cpgetpack $name|");
my $userplan = <UP>;
close(UP);chop($userplan);
if ($userplan eq "radix_FreeTrial") {
return "no";
}
You will have to replace the radix_FreeTrial string with the package you assign to your trial users. This will prevent trial users from authenticating which prevents them from sending mail remotely.

STEP THREE

Users are now still able to send mail locally (for example using the PHP mail() function), so hereís what to do next.

Find the checkdemo subroutine in the exim.pl file and replace the complete subroutine with:

Code:
sub democheck {
my $uid = Exim::expand_string('$originator_uid');
if (isdemo($uid)) { return 'yes'; }

my $name = getpwuid($uid);
open(UP, "cpgetpack $name|");
my $userplan = <UP>;
close(UP);

chop($userplan);

if ($userplan eq "radix_FreeTrial") {
return 'yes';
}

return 'no';
}
STEP FOUR

Now just restart Exim:

Code:
service exim restart
It might be a good idea to create a trial account and see if itís working. Enjoy!

REFERENCE:

Original post: [url]
Best regards,
Josh Burt

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Dec 11, 2008

All my cPanel webmail programs (roundcube, squirrel mail and horde) are not able to send e-mails. I can send through POP3 fine, but these programs just can't send mail. I've done some googling and found that if I edit the squirrelmail config to use sendmail it should work - which it does. So really, I've got squirrel mail to work, but the problem still exists for the other two webmail programs.

I think it's some sort of a problem with SMTP, but I'm not too sure.

If you've experienced this before or know how to fix it,

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Sep 8, 2007

I am unable to send or receive email from the server in Mail Queue Manager it shows this when clicking deliver now

Code:
Delivery attempt for Message ID 1ITmWS-0001u4-QJ
Message 1ITmWS-0001u4-QJ is no longer frozen
delivering 1ITmWS-0001u4-QJ
LOG: MAIN
lowest numbered MX record points to local host: domain.com
LOG: MAIN
== myemail@domain.com R=lookuphost defer (-1): lowest numbered MX record points to local host
LOG: MAIN
Frozen

Return to Mail Queue

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Exim Can`t Send E-mails After Cpanel Upgrade

May 2, 2009

we have a freebsd/cpanel box what seems to be trouble prone combination, specially for exim.

After cpanel upgrade, exim simple has stopped. Somehow I managed receiving on this way:

# /etc/init.d/exim start
/libexec/ld-elf.so.1: Shared object "libperl.so" not found, required by "sendmail"

I checked which perl version is running: perl -v
This is perl, v5.10.0 built for i386-freebsd-64int

then applied:

unix1# ln -s /usr/local/lib/perl5/5.10.*/mach/CORE/libperl.so /usr/local/lib
unix1# /etc/init.d/exim start
exim exim antirelaydunix1#
unix1#

but this solved only half of a problem, now we can receive e-mails, but not send them, what is really frustrating.

Here is the error which cpanel sends on each 5 min:

exim failed @ Fri May 1 16:06:15 2009. A restart was attempted automatically.
Service Check Method: [tcp connect]

Failure Reason: TCP Transaction Log:
<< 220-xxxxxxxxxx.xxxx ESMTP Exim 4.69 #3 Fri, 01 May 2009 16:06:41 +0200 << <<
>> EHLO localhost
<< 250-xxxx.xxxx.xxx Hello localhost [127.0.0.1] << << << << <<
>> AUTH PLAIN
>> AF9fY3BhbmVsX19zZXJ2aWNlX19hdXRoX19leGltX19Nd2NxU1pyUng1S3R5YTl2enZaV
>> zN4R3Q1MU5WdTh1MHBZcnI4NDhqaWVtWFhSY3VraERTSGZnZU1tQkpiVXNWAFRkbzNpY3
>> ZVTUg1N1Z0R0t5c2VLYW82T1U1UFlqRDEwVThpVXlGSUpFMkZDRWVFaWxzTTNZMHVaRGd
>> UWXM1WnU=
<<
exim: ** [ != 2]

and I can not find the solution for this almost two days (!), no help for host support either. Closest what I have found on net is this topic:

[url]

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May 16, 2009

I've looked through my exim logs a number of times and I see emails being sent out with "from:" fields with email addresses of other domains. Usually they are spam related and fraudulent.

How can exim be setup to only send out emails that have localdomains in their from fields?

E.g. if I have account bob.com on my server then the owner of bob.com can only send out emails "xxxx@bob.com" no matter what else he tries to do that's all exim will send out.

How can you get exim to do this? I have been using filtering to block commonly spammed domains like aol.com hotmail.com etc - any emails sent out with these in their from fields are filtered and blocked - but rather building up a larger and larger filter of commonly abused domains - why not just block everything except domains on your server.

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May 3, 2009

we are not able to send or resive emails from other servers

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May 5, 2008

The following setup has been working fine for several months, I came to check the site today and I'm unable to connect. Email and site are split (email is with googlemail).

@NS ns1.domainregistrar.com
@NS ns2.domainregistrar.com
@MX10 ASPMX.L.GOOGLE.COM 604800
@MX20 ALT1.ASPMX.L.GOOGLE.COM604800
@MX20 ALT2.ASPMX.L.GOOGLE.COM604800
@MX30 ASPMX2.GOOGLEMAIL.COM604800
@MX30 ASPMX3.GOOGLEMAIL.COM604800
@MX40 ASPMX4.GOOGLEMAIL.COM604800
@MX40 ASPMX5.GOOGLEMAIL.COM604800
webmailCNAME ghs.google.com3600
@A **serverip**3600
ftpA **serverip**3600
wwwA **serverip**3600
*A **serverip**3600

I can send and receive, but no emails arrive, probably because the registrar has a resolve issue?

Site is also down.

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Exim: Send Separate Message For Mailing Lists

Jul 9, 2009

I've just came across an issue with mailing list on a Linux server. Problem is that when a message is broadcasted from a mailing list having around 1500 subscribers, most of them having @yahoo.com and @hotmail.com addresses, message to most of the recepients fails with following error...

Code:
2009-07-09 12:26:25 1MOn2u-0001CB-QJ SMTP error from remote mail server after RCPT TO:<he***k@yahoo.com>: host c.mx.mail.yahoo.com [216.39.53.3]: 452 Too many recipients
It is becuase exim tries to send a message to as many recepients as it could to users on same domain

On a Windows server, i was running Merak mail server and there was an option to send separate message to all mailing list subscribers, but i don't know where it could be located in exim config, or even if it has!

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