Clients have been complaining that when they try to send large attachments they are not getting through.
They keep getting failure messages saying the server was interrupted and the message could not be sent.
Is there any settings that I can change to allow larger attachments go through?
Its a Cpanel server with Exim
My server is running WHM 11.15.0 cPanel 11.18.6-S24739 /
REDHAT Enterprise 4 i686 on standard.
I am using EXIM.
Lately, users on my server have not been able to receive most attachments. E-mails with small attachments, such as an 11,000 byte file, show up just fine. An e-mail from the same person, but with a 560,000 byte attachment will simply never show up, and there is no returned "bounce" message to the sender. It is like the e-mail was never sent.
The odd thing is, e-mails sent to and from e-mail addresses hosted on my server have no trouble sending/receiving large attachments of any size (I have tested up to several megs in size). For example, tom@example.com and joe@another_example.com both have their domains hosted on my server. They can send each other large attachments with no trouble. But, if tom@yahoo.com or tom@gmail.com tries to send a larger attachment to tom@example.com, the e-mail and the attachment never show up.
Things to note:
1) The e-mail accounts are no-where near their storage limits.
2) message_size_limit is not set, so I assume the max attachment limit is the default 50mb.
I have a customer who needs to move her existing hosting to another provider. The one thing she likes about the existing provider, however, is an allowance of Email attachments of 50-75MB in size. Most limit you to 10-20MB. Does anyone know of a hosting provider that would accomodate this?
View 6 Replies View RelatedCurrently I am on a shared hosting service. My main concerns are to send a newsletter every fortnight which has an attachment of about 3 MB and has to be delivered to 800+ members.
In doing so on a shared hosting plan i receive a memory allocation error as the php.ini has 32 MB and i cannot change it because i am on shared hosting. I am using Joomla and Acajoon component to send the mails; after every 7-8 mails out of 800 members i recive the fatal error of memory allocation and I am looking for a solution to this problem.
My main concerns are of sending 3 MB attachment mails to the members . What kind of hosting should i go for in order to send mails successfully.
Would VPN be useful .
Also what exactly is DNS hosting?
We are experiencing a very strange problem. This is NOT related to authenticating SMTP, or any antivirus or firewall software. Let me know that it has been tested in several machines and we got our conclusions, and the same did some other technicians.
We own a dedicated server with around 70 domains. We do not resell hosting. We just develop sites and host them there, usually with their emails too.
This first all started with a customer that could not send attachments on his email. He told us that could not send email with attachments. Normal emails worked, but not this.
Of course we helped them configuring the account once and again. In some cases it seemed to work, but then it didn't. We thought it could be related to their ISP, because it happened the same in different shops they own in different locations. This happened to them when sending files (reports) each other (all in the same domain).
The error they were getting was about "Socket Error 10053. 0x800ccc0f". I was able to reproduce this error unchecking the "smtp needs authentication", and also "use the following account", while inserting a username but not password. Anyway, as I stated before, all this has been checked and re-checked. So seems to have no relation with antivirus or authentication error.
In other cases, people has been able to send them the email, and they receive nothing.
Then, after a few days, the sender receives some kind of mail delivery error.
Webmail also does not seem to work for them. They see the page strangely loaded, they say, and then attacing a file and hitting Upload, they get a "page not found", when I can see it perfectly and run it, on my office.
Then another customer called... webmail was also weird, and his own web site was doing strange things. Some images were not loading, but when refreshing, you could see those images loaded, and maybe others not. Something random every refresh. At same time, this customer had problems when sending an email with attachment to another customer that is in our own server.
Today some more customers called... one was very angry because a customer (his customer, not ours) could not send email to him. So mails yes, others not. Guess?. Yeah: attachments.
The other call was about the same... a designer that could not receive attachments (to work), because the other side was getting errors when attaching.
And another customer called because one of their customer could not send attachments.
This customer's customer is a big company (with around 1,000 employes), and their technicians checked their own accounts. They said everything was OK so it had to be something wrong in our customers account.
Of course we work normally, we have no problems, and no other calls received.... web sites are OK, server seems to be OK... I phoned the ISP that maybe was having trouble, I also phoned my hosting provider... but you know "we will check", "yes we are checking it", etc.. for about 4-5 days now.
And I'm really lost.
Does anyone have an idea of what could be happening? Is there any way to "block" attachments to a router/server/connection? This is the only idea that can go on my mind... in that case, how do I check this?
This started happening around 12-15 days ago. At same timeframe, there were a couple of servers hacked in this hosting provider, but I'm not sure if this has something to do with it... today we received an email about "network manteinance" at 7pm.
Any help or clue will be appreciated, as I'm only a web developer, with basic tech knowledge, so not a veteran system admin...
Exim logs:
2007-04-05 15:07:45 1HZYFE-0003DC-Rr <= sales@mydomain.com H=(mta2.srv.hcvlny.cv.net) [167.206.4.197]:42573 I=[xxx.xxx.122.208]:25 P=esmtp S=9925 id=000801c777be$11815a50$34840ef0$@com T="test" from <sales@mydomain.com> for marco@customer.ca maria@customer.ca
2007-04-05 15:07:45 cwd=/var/spool/exim 3 args: /usr/sbin/exim -Mc 1HZYFE-0003DC-Rr
2007-04-05 15:07:45 1HZYFE-0003DC-Rr => discarded (system filter)
2007-04-05 15:07:45 1HZYFE-0003DC-Rr Completed QT=1s
This only happens when a 4kb jpeg/jpg attachment is sent. Not sure where its getting caught.
My antivirus.exim file attached
I searched for "jpg" and "jpeg" in that file, nothing showed up.
Code:
# Exim filter
## Version: 0.17
#$Id: system_filter.exim,v 1.11 2001/09/19 11:27:56 nigel Exp $
## Exim system filter to refuse potentially harmful payloads in
## mail messages
## (c) 2000-2001 Nigel Metheringham <nigel@exim.org>
##
## This program is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 2 of the License, or
## (at your option) any later version.
##
## This program is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with this program; if not, write to the Free Software
## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
## -A copy of the GNU General Public License is distributed with exim itself
## -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
## If you haven't worked with exim filters before, read
## the install notes at the end of this file.
## The install notes are not a replacement for the exim documentation
## -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
## -----------------------------------------------------------------------
# Only run any of this stuff on the first pass through the
# filter - this is an optomisation for messages that get
# queued and have several delivery attempts
#
# we express this in reverse so we can just bail out
# on inappropriate messages
#
if not first_delivery
then
finish
endif
## -----------------------------------------------------------------------
# Check for MS buffer overruns as per BUGTRAQ.
# [url]
# This could happen in error messages, hence its placing
# here...
# We substract the first n characters of the date header
# and test if its the same as the date header... which
# is a lousy way of checking if the date is longer than
# n chars long
if ${length_80:$header_date:} is not $header_date:
then
fail text "This message has been rejected because it has
an overlength date field which can be used
to subvert Microsoft mail programs
The following URL has further information
[url]
seen finish
endif
## -----------------------------------------------------------------------
# These messages are now being sent with a <> envelope sender, but
# blocking all error messages that pattern match prevents
# bounces getting back.... so we fudge it somewhat and check for known
# header signatures. Other bounces are allowed through.
if $header_from: contains "@sexyfun.net"
then
fail text "This message has been rejected since it has
the signature of a known virus in the header."
seen finish
endif
if error_message and $header_from: contains "Mailer-Daemon@"
then
# looks like a real error message - just ignore it
finish
endif
## -----------------------------------------------------------------------
# Look for single part MIME messages with suspicious name extensions
# Check Content-Type header using quoted filename [content_type_quoted_fn_match]
if $header_content-type: matches "(?:file)?name=("[^"]+\.(?:ad[ep]|ba[st]|chm|cmd|com|cpl|crt|eml|exe|hlp|hta|in[fs]|isp|jse?|lnk|md[be]|ms[cipt]|pcd|pif|reg|scr|sct|shs|url|vb[se]|ws[fhc])")"
then
fail text "This message has been rejected because it has
potentially executable content $1
This form of attachment has been used by
recent viruses or other malware.
If you meant to send this file then please
package it up as a zip file and resend it."
seen finish
endif
# same again using unquoted filename [content_type_unquoted_fn_match]
if $header_content-type: matches "(?:file)?name=(\S+\.(?:ad[ep]|ba[st]|chm|cmd|com|cpl|crt|eml|exe|hlp|hta|in[fs]|isp|jse?|lnk|md[be]|ms[cipt]|pcd|pif|reg|scr|sct|shs|url|vb[se]|ws[fhc]))"
then
fail text "This message has been rejected because it has
potentially executable content $1
This form of attachment has been used by
recent viruses or other malware.
If you meant to send this file then please
package it up as a zip file and resend it."
seen finish
endif
## -----------------------------------------------------------------------
# Attempt to catch embedded VBS attachments
# in emails. These were used as the basis for
# the ILOVEYOU virus and its variants - many many varients
# Quoted filename - [body_quoted_fn_match]
if $message_body matches "(?:Content-(?:Type:(?>\s*)[\w-]+/[\w-]+|Disposition:(?>\s*)attachment);(?>\s*)(?:file)?name=|begin(?>\s+)[0-7]{3,4}(?>\s+))("[^"]+\.(?:ad[ep]|ba[st]|chm|cmd|com|cpl|crt|eml|exe|hlp|hta|in[fs]|isp|jse?|lnk|md[be]|ms[cipt]|pcd|pif|reg|scr|sct|shs|url|vb[se]|ws[fhc])")[\s;]"
then
fail text "This message has been rejected because it has
a potentially executable attachment $1
This form of attachment has been used by
recent viruses or other malware.
If you meant to send this file then please
package it up as a zip file and resend it."
seen finish
endif
# same again using unquoted filename [body_unquoted_fn_match]
if $message_body matches "(?:Content-(?:Type:(?>\s*)[\w-]+/[\w-]+|Disposition:(?>\s*)attachment);(?>\s*)(?:file)?name=|begin(?>\s+)[0-7]{3,4}(?>\s+))(\S+\.(?:ad[ep]|ba[st]|chm|cmd|com|cpl|crt|eml|exe|hlp|hta|in[fs]|isp|jse?|lnk|md[be]|ms[cipt]|pcd|pif|reg|scr|sct|shs|url|vb[se]|ws[fhc]))[\s;]"
then
fail text "This message has been rejected because it has
a potentially executable attachment $1
This form of attachment has been used by
recent viruses or other malware.
If you meant to send this file then please
package it up as a zip file and resend it."
seen finish
endif
## -----------------------------------------------------------------------
#### Version history
#
# 0.01 5 May 2000
#Initial release
# 0.02 8 May 2000
#Widened list of content-types accepted, added WSF extension
# 0.03 8 May 2000
#Embedded the install notes in for those that don't do manuals
# 0.04 9 May 2000
#Check global content-type header. Efficiency mods to REs
# 0.05 9 May 2000
#More minor efficiency mods, doc changes
# 0.06 20 June 2000
#Added extension handling - thx to Douglas Gray Stephens & Jeff Carnahan
# 0.07 19 July 2000
#Latest MS Outhouse bug catching
# 0.08 19 July 2000
#Changed trigger length to 80 chars, fixed some spelling
# 0.09 29 September 2000
#More extensions... its getting so we should just allow 2 or 3 through
# 0.10 18 January 2001
#Removed exclusion for error messages - this is a little nasty
#since it has other side effects, hence we do still exclude
#on unix like error messages
# 0.11 20 March, 2001
#Added CMD extension, tidied docs slightly, added RCS tag
#** Missed changing version number at top of file :-(
# 0.12 10 May, 2001
#Added HTA extension
# 0.13 22 May, 2001
#Reformatted regexps and code to build them so that they are
#shorter than the limits on pre exim 3.20 filters. This will
#make them significantly less efficient, but I am getting so
#many queries about this that requiring 3.2x appears unsupportable.
# 0.14 15 August,2001
#Added .lnk extension - most requested item :-)
#Reformatted everything so its now built from a set of short
#library files, cutting down on manual duplication.
#Changed w in filename detection to . - dodges locale problems
#Explicit application of GPL after queries on license status
# 0.15 17 August, 2001
#Changed the . in filename detect to S (stops it going mad)
# 0.16 19 September, 2001
#Pile of new extensions including the eml in current use
# 0.17 19 September, 2001
#Syntax fix
After latest update to #34, all the users cannot send Attachments using Outlook due to timeout problems. It happens with Postfix, not Qmail.
View 3 Replies View RelatedOS: CentOS 5.9 (Final)
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Are there any settings that I am missing, or is this a current bug in this version of Horde?
I migrated a client from a Windows server to Linux and everything is fine except that mail sent to this client (say, example1.com) from a particular domain (say, example2.com) simply disappears and does not reach at all. Mail sent to that other domain (example2.com) from my new client (example1.com) is delivered correctly.
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I'm having a lengthy issue where my databases are to large to import in phpmyadmin using plesk. Unfortunately I dont have direct access to phpmyadmin and can only access it by DB user through plesk.
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View 7 Replies View RelatedI have a website which has about 20K users, and now I am using VPS plan at LunarPages.
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View 14 Replies View Relatedany recommendation for a good e-mail service (IMAP) for large accounts? between 5 and 10GB each?
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Quote:
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