Firewall, Airport, Mail,

Hi there,
here is the setup, Imac connected to the web via cable modem, various G4 powerbooks and Macbooks connected over airport and using that one connection, problem when I enable the firewall the aiport connected computers can't check for E-mail (pop accounts in mail) but can access the web,
I believe I need to enable a port on the firewal, but I am convinced this has never been needed, anyway can anyone help?
Kind regards
Imac 24' Mac OS X (10.4.8)
Mac Mini Mac OS X (10.4.2)

Open port 110 on the firewall and see what happens.

Similar Messages

It's possible a firewall in mail?

I have troubles with my mail, I can send mails, but I can't recive them and there is no messages that told me what is happen.
The information account it's ok and my firewall it's off, what can I do?

You might want to do some maintenance on your Mac, you may have a ploblem with a font file that is damaged or some cache issue that is acting up.
Maybe something went wrong with your harddisk (permissions etc.) Do you ever run maintenance software (e.g. MacJanitor) or switch off your Mac every day? It's doing some maintenance by itself in the middle of the night if you leave it on.
This reply gets more & more detailed, just begin with the first instructions and see of that helps. If not, work down the list of suggestions.
Run Disk Utility - Repair Permissions and if that brings up a whole set of issues, try something more serious like Disk Warrior.
MacJanitor (free)
DiskWarrior (not free)
If you want more details on these problems, have a look here for Resolving Disk, Permission and Cache Corruption, it gives you a comprehensive description of how to deal with these problems. Plus some notes on side effects of cache cleaning
Useful Cache cleaning programs:
Cache Out X
Tiger Cache Cleaner not free
OnyX free
PB G4 17, 1.5 GHz, 1 GB ram Mac OS X (10.4.6)

Delays at Airport - Mail and Browser problems

There's something strange going on and I have no idea how to fix this. I currently use 2 iMac's - 1 is an old iSight running 10.4 and the other is a new Intel Core running 10.6.4
When I start up the new machine and connect using Airport to use either a Browser or the Mail Application . . . I always have to close them both immediately and open them again to get them working.
This does not happen if I use the old iMac and both machines are on the same desk and I have run them at the same time to check response.
Has anyone else experienced this at all ? and does anyone have a fix ?
I really do not understand why this is happening, what can cause this kind of 'delay' to hook up and get going.

Please describe your Airport connection. Where are you connecting? What type of internet service? Router? Make? Model?...

Delays at airport - mail app never hooks up in sync

I have put up with this nonsense for 1 months and my patience is torn. Can someone, anyone offer a solution. The Mail Application refuses to hook up and sync with Airport Connections. Airport finds the Connection and all is fine . . . but when Mail Application is fired up . . . it decides there is no connection . . . I quite and re-open . . . it decides there is no connection . . . I quite and re-open . . . it decides there is no connection . . . I quite and re-open . . . it decides there is no connection . . . I quite and re-open . . . it decides there is no connection . . . I quite and re-open . . . it decides there is no connection . . . I quite and re-open . . . it decides there is no connection . . . I quite and re-open . . . it decides there is no connection . . .
get the idea . . . my old not intel iMac sorts it out first time in seconds , , , my new iMac Intel Duo however can't tell it's Airport from it's Crash Landing
Any advice ?????????????????

Please describe your Airport connection. Where are you connecting? What type of internet service? Router? Make? Model?...

Mail and Ethernet/Airport

Hi,
Can someone make sense of this apparently illogical behavior of Mail.app when using the built-in Ethernet ?
In the office on the company network ( via ethernet cable ) :
Mail.app does not connect to mail server. No airport available.
Thunderbird connects just fine, can retrieve and send.
Safari works fine.
At home or hotel ( with VPN connected to company network via Airport ) :
Mail.app works !, but not yet tried cable connection to the same router.
Thunderbird works as it does in the office, flawlessly.
Safari works.
In hotel room ( with VPN connected to company network via ethernet cable ) :
Mail.app doesn't work !
Thunderbird works !
Safari works ( of course ).
Huh ? Am I crazy thinking that it is the ethernet connection to Mail.app that is specifically "broken". That doesn't make any sense to me, how about you ?
Thanks in advance,
Mark

Ernie,
You are a genius !! It worked. :o))))
Thanks so much for the quick reply and solution. I have no clue how the SOCKS proxy got checked in the ethernet panel. I have been banging my head against the metaphorical wall for two months with this.
Dinner is on me ! :o)
Mark

Pix 506e firewall configring for mail( Exhange), Web, FTP server

Hi
I am Hemant, We have pix 506e firewall, D-link ADSL dsl-502t and my IBM xseries 236 server.
I have fix static live ip 59.181.103.220 which i have got ISP (MTNL), and the same ip is given in fqdn in www.net4india.com (a company from where we have registered domaim name and taken space)
My problem is i am not able to send mail through my mail server (loyalindia.co.in)but i am receiving mails from any server.
My network design is as fallows:-
ADSL (WAN)59.181.103.220, ADSL (LAN)59.181.103.221. Pix 506e (out) 59.181.103.222, Pix 506e (in) 192.168.1.1. My domain mail server loyalindia.co.in (Exchange server) ip 192.168.1.2
I am tryied with (ADSL)natting and without natting but the problem is same.
If i am removing the pix 506e and directly connecting the server to adsl i am able to receive and send mails properly.
can anybody who can support me?.

Hello
I think there won't be one QUCK START to get all of this up and running, there are multiple examples on the following page, a few that might help would be:
http://www.cisco.com/en/US/products/hw/vpndevc/ps2030/prod_configuration_examples_list.html
PIX/ASA : Connecting Three Internal Networks with Internet Configuration Example
PIX/ASA : Connecting Two Internal Networks with Internet Configuration Example
ASA 7.x/PIX 6.x and Above: Open/Block the Ports Configuration Example
PIX/ASA 7.x: Enable VoIP (SIP, MGCP, H323, SCCP) Services Configuration Example
PIX/ASA 7.x and FWSM: NAT and PAT Statements
PIX/ASA 7.x and later : Port Redirection(Forwarding) with nat, global, static and access-list Commands
Configuring PIX Firewall with Mail Server Access on the DMZ
Configuring the PIX Firewall with Mail Server Access on Inside Network
Please rate if you find the post helpful.
Regards
Farrukh

How do I set up a filter to stop relayed mail?

How do I set up a filter to stop relayed mail?
Unsolicited Bulk E-mail (UBE) is electronic mail sent to large numbers
of recipients without their knowledge or consent, usually advertising commercial
products or services. It is the electronic equivalent of paper "junk
mail", and is commonly referred to as Spam.
UBE is usually just a nuisance, but the volume of UBE received at a
certain site can at times become so onerous that business-critical functions
are affected. This is especially true when UBE is used maliciously
to produce a denial of service attack, where a mail server is inundated
with UBE and crashes because of the load. Another common UBE problem
is when a mail server is used as a relay for UBE, so that a particular
server spends all its time routing e-mail that isn't destined for its
users. Some ISPs have reported that their mail servers have been
hard coded into certain spam programs, so that they are constantly being
used as a relay. Not only does this slow down their mail service
locally, but sometimes other ISP's will identify the afflicted ISP as a
source of spam and begin to block messages, legitimate and spam alike,
coming from that ISP. ISP's often name UBE as their number one problem,
preventing them from providing fast, reliable service.
For a full definition of UBE see http://www.imc.org/uce-def.html
(Unsolicited Bulk Email: Definitions and Problems).
Messaging Server 3.5 Hosting Edition supports powerful filtering capabilities
on messages as they are received by the server. Various criteria
can be applied to incoming messages, including testing on number of recipients,
sender domain or IP address, messages being relayed, and more. Messages
can then be bounced, dropped, or reviewed by an administrator before being
delivered. Providers can filter out unwanted mail at the source or block
a third party from using their messaging server for relaying email.
UBE Filters Functionality Overview
The UBE filter is a plugin for Netscape Messaging Server 3.5. It works
by examining all incoming mail before it is routed throughout the system
(to users mailboxes or to other email servers). The UBE filter uses a set
of rules (also known as filters) to decide what to do with each piece of
mail. The filters are used to trap specified types of mail.
Mail that is trapped can be rejected, forwarded to a specific mailbox (e.g.,
the postmaster), deleted, or altered in some way. Mail that "passes"
all the filters continues on its normal course.
Filters can be set up two ways, either using the straight forward Graphical
User Interface (GUI) or by setting up the filters directly in the filter.cfg
file. Generally, one would use the GUI interface for simple, one
line filters. To set up more complicated, multi-part filters, editing
the filter.cfg file directly would be faster. Both methods
are accessed via the Messaging Server Admin tool, under Plug-ins.
The following discussion gives some high level examples of how to set up
simple filters using the GUI and via the filter.cfg file.
For detailed information on how to set up and configure the UBE Filter
plug-in, see chapter 5 of the online help, or http://home.netscape.com/eng/Messaging/guide35/ch5.htm#Controlling
unsolicited bulk email (UBE).
Setting Up UBE Filters with the GUI
The following screen shot shows a simple UBE filter being set up using
the UBE GUI. What is being set up is a filter to check all incoming
messages to see if they come from a domain that has been a regular source
of UBE. In this case, the name of the offending domain is "spammer.com".
So, each message that comes in has its "From" field checked to see if
it is from "spammer.com". If it is, the action is REJECT, meaning
the message is bounced back to the sender, with the appended message "I
don't accept mail from spammer.com".

 
Any field in the message can be examined, with some of the most popular
including the Subject, To, and Cc fields. Any regular expression
can be placed into the Value field, thus allowing the filter to check for
various conditions, including containment of a particular phrase (e.g.
Subject includes "make money"), or number of recipients (e.g., if greater
than 100, REJECT). For more information on how to write regular expressions,
see http://home.netscape.com/eng/Messaging/guide35/ch5.htm#Controlling
unsolicited bulk email (UBE)
There are a number of actions that can be taken on a trapped message.
The most common are forwarding to a "watchdog" account such as the postmaster,
rejection, and deletion. But, in addition, programs such as virus
checking can be run on a message to trap infected messages.
Setting Up UBE Filters by editing the filter.cfg file
In the above example, the filter that was set up was converted to a
short filter script that looked as follows:
Channel-From ".*@spammer.com" REJECT
"I don't accept mail from spammer.com"
This can also be directly entered into the filter.cfg file by
choosing the option "Edit Config File" from the UBE Page. This becomes
interesting for more complicated filters that require more than one filter
line. The following example shows a set of filters that were set
up to check for various conditions. For example, the fifth
and sixth line down is a filter that checks messages for viruses.

 
Using the UBE Filter for Anti-Relay
 
One of the most requested needs of the new UBE filters supported in
Messaging Server 3.5 is to provide "anti-relay", i.e., to stop UBE which
is from an outside domain and destined for another outside domain.
In these cases, the mail is usually UBE and is relaying to hide the source
of the original spammer.
There are two possible scenarios for anti-relay. One is where
there is a separate machine outside the firewall that checks for e-mail
for its domain. The other scenario is when there is only one machine
handling both internal and external traffic.
Scenario One: Separate machines used for internal and external
mail
Outside of the firewall are mail servers that handle all incoming mail
from the internet. Internal users connect to mail servers inside
of the fire wall. The scenario looks like this:
 
What we want to allow is users 1 and 2 (U1 and U2) to send mail anywhere
but X1 and X2 should only be allowed to send mail to our servers.
Solution:
On the External Mail Server create a filter script that checks the Channel-to
header for domains that are internal to us. Allow these through and
reject all other mail. E.g., the filters would look as follows:
 
<UL># if the mail is bound for domain1 or domain2 then exit the script
(and allow the mail to continue)
 Channel-To "domain1.com" EXIT
 Channel-To "domain2.com" EXIT
 # otherwise reject it outright ($ANY means any header and .* means
it has any text)
 $ANY ".*"
REJECT "This machine only accepts mail bound for domain1.com or domain2.com"</UL>
We don't need to do anything on the internal server since only our users
can get to it (because of the firewall) and we want to allow them to send
and receive any and all mail.
 
Scenario 2: Single machine used for internal and external mail
In this scenario the same machine is used for both internal and external
connections. The problem we face here is that we need to allow the
local users to send mail outside our domains but not allow external users
to do the same. Note: This set up is not generally recommended, since it
makes the Messaging Server open to external attacks.
 
Here, we want to allow U1, U2 and U3 to send anywhere and X1 and X2
to send to domain1 or domain2 only.
Solution:
The solution in this case is to put the same script as scenario 1 on
the server but pre-pend it with lines that check for a connection from
the internal domains. If the connection is from our users it must
be from certain IP addresses, say 128.128.128.* or 128.128.129.*, so we
look for that. If it's not from one of these two IP addresses, then
it must be from outside and we apply the same logic as in scenario 1.
 
<UL>#if the connection is from our internal domains then exit the script
(and allow the mail to continue)
 Host-From "128\.128\.128\." EXIT
 Host-From "128\.128\.129\." EXIT
 # if the mail is bound for domain1 or domain2 then exit the script
(and allow the mail to continue)
 Channel-To "domain1.com" EXIT
 Channel-To "domain2.com" EXIT
 # otherwise reject it outright ($ANY means any header and .* means
has any text)
 $ANY ".*" REJECT "This machine only accepts mail bound for domain1.com
or domain2.com"</UL>

I agree anti-relay can be using UBE feature. However, there is serious problem in reject the spam mail. My nms is using UBE feature to stop spam mail. According to the work flow of the UBE, the mail is received by nms completely and UBE is going to invesgate the mail address. Although UBE can stop the spam mail, the spam mail have a trouble in returning the mail to the sender. The reason is the sender address is usually not existed in the world. That will cause a lot of mail waiting in the mail queue.
In my experience, do not use UBE for anti-relay.

SMTP behind Firewall

We have a sever behind firewall, the SMTP ports are opened on firewall. When the application tries to send mail using java mail API, I get the following error. Anything worng with firewall (or) mail api ?
javax.mail.SendFailedException: Sending failed;
nested exception is:
javax.mail.MessagingException: 530 5.7.3 Client was not authenticated
at javax.mail.Transport.send0(Transport.java:219)
at javax.mail.Transport.send(Transport.java:81)

I think you have made it to the mail server (sounds like exchange). Looks like the server is setup to require authentication on incoming SMTP requests. Look here
http://www.experts-exchange.com/Networking/Email_Groupware/Exchange_Server/Q_20250036.html
Of course, I could be wrong and your firewall has a custom message for SMTP traffic which isn't coming from a 'authorized' mail server or a authenicating proxy server.

Help with MAIL and Address book

Hello
I am starting a Mac mini server, I have setup Ical and Itunes, but I have no manage to setup Mail.
Can somebody post screen samples of the setup on the MAC mini and on the client ?
What do you do to share an existent address book within users ?
Thanks in advance for your help
Best
Cyril
My mail is : cb dot pub at numericable dot com
my MX (domain) is : mx dot cyrilblanc dot fr

You need to have a stable and correct DNS services configuration. This is a prerequisite for mail.
The following is a result of an incorrect DNS services configuration:
$ dig +short MX cyrilblanc.fr
1 mx.cyrilblanc.fr.
$ dig +short mx.cyrilblanc.fr.
87.231.239.246
$ dig +short -x 87.231.239.246
87-231-239-246.rev.numericable.fr.
$
Your reverse DNS is 87-231-239-246.rev.numericable.fr. and this translation does not match your forward DNS mx.cyrilblanc.fr. and correct DNS is a common prerequisite for the receiving mail servers; for those services that will receive and process your outgoing messages when your server is sending mail.
Your MX record for the subdomain mx.cyrilblanc.fr is targeting mail servers at 1and1, and that may or may not be your intent. (Given your name, I'd assume you want to have [email protected]+ as your email, which means the MX record that is applicable here is the MX record associated with cyrilblanc.fr domain and not the MX record with the mx.cyrilblanc.fr subdomain.
To configure your reverse DNS, you will need to contact your ISP.
Further, your ISP may or may not allow mail servers. Many ISPs can require a commercial tier of service, and can firewall the mail ports within a non-business service tier. Check with your ISP here.
An "A record" is basic DNS construct; it is a machine name record. Your current DNS record for your mx host is an A record, and not a CNAME ("alias") or other format record, which is good.
Given you want screen shots, you may want to subscribe to the Lynda video library. (I have no experience with those, but there are folks around that have referenced them as a simple approach for configuring your Mac OS X Server box.) I'm not in a position to post screen shots from my servers, and it is exceedingly likely that how I have my mail clients configured will not match your requirements. And I'll end up explaining the differences.
Please also take the time to Google the forums. There are similar discussions. Google specifically for that string I provided earlier, as that's a commonplace response to somebody that's trying to troubleshoot a mail server problem.

Setting Outlook Categories resends Mail

Hello everyone,
We've got a problem at a customers. They use exchange 2013 and the user that has troubles uses Outlook 2010.
The problem, happens if she tries to categories an incoming email, it disappears and reappears with the current time-stamp.
So it looks like the email was send at a different point of time, than it originally was received.
But this happens only on a shared mailbox, not her own and only with a couple of email addresses. It works just fine for about 90% of all incoming email.
We tried it using a different account, and it seems to be the same problem there. So the problem is not caused by her outlook settings.
Has anyone ever had a problem like that before?
Thanks for your help =)
Greetings
Steffen

Hello,
Firstly, I suggest we try to check whether the issue happens on another computer.
You can firstly try running Outlook in its safe mode, disable any 3rd-party firewall and mail scan software.
Thanks,
Simon Wu
TechNet Community Support

Mail going offline repeatedly

Hi. My mail application has suddenly started going offline repeatedly. I have a wireless DSL account and even when I have a signal and am online (according to system preferences/network/airport), mail tells me I'm offline. I "go online," it checks mail for a second or two, and then tells me I'm offline again. Usually takes about 15 times of going "back online" before I finally get mail. Any thoughts???

I have the same problem and I have not found a solution yet, even though there are postings on this subject dating back to 2005. The problem seems to be some misconfiguration in mail.app b/c when I use a web mail service I have no trouble connecting to the server and downloading mail.
The very annoying thing about mail.app is that when the server refuses connection the email account goes automatically offline. If you don't reset it manually, it will never try to download your email again!!! That bugs me enough that I am considering switching to some other email client.
The time interval for checking mail does not matter. I have it set at 15 min but when I had set to 30 min I had the same problem (and did not get mail for hours).
I did change the settings in System Preferences > Network > Network Port Configurations but that did not seem to make a difference.
Incidentally, the Alert message I get when mail goes offline is:
The server error encountered was: The connection to the server "email.xxx.zzz" on port 0 timed out
This "port 0" puzzles me b/c I am using SSL which supposedly connects to port 995 (according the mail>preferences>account>advanced...)
Themis
iMac G4 Mac OS X (10.3.8)

Messaging Server 4.15 & firewall problems.

I have Messaging Server 4.15 behind a firewall & external mail server in DMZ. My customers strongly don't want to show their internal information in
the mail headers (hosts names, iPlanet Messaging Server name...)
1. Can I change mail server info & can I remove some information (iPlanet Messaging Server version, user host name & ip) from the mail headers?
2. As far as Messaging Server 4.15 is behind a firewall, some mail servers, which check sender's domain name, can't receive my customers mails (they
can't find iPlanet Messaging Server name because it is behind a firewall). How can I solve this problem? Will the change of mail server info in mail headers help me?

Removing such information is generally frowned upon by the community. By altering such information you could prevent mail from being delivered successfully.
As for point 2 even if your hosts are behind a firewall there should be public DNS records for them. It usually can be something generic like h-10.0.0.1.domain.com so that no real information is given away but other hosts on the internet can determine who you are.

VPN on Dual Power PC G5

I have just uncovered a weird symptom which might be dual G5 related.
My internet and Mail work fine.
I connect my Cisco VPNClient Software (Version 4.6.04) and enter my password. The Software then tells me I am connected to the network at my company.
All internet connectivity ceases at this point. I can't connect to either my company network, or to anything else on the network. The e-mail both behind the firewall at my company, and my non-firewalled e-mail disconnects.
If I disconnect from my VPNClient Software everything begins working again. Other computers connected to my D-Link wireless router work normally, and allow the VPN to access my company network.
Any ideas? I am suspicious that some kind of a "too-fast" condition exists which causes the 2.3GHz Dual PC to freeze.
Dual 2.3 GHz Power PC G5 Mac OS X (10.4.3) D-Link Router

They have addressed the dual PROCESSOR issue but....
Now there seems to be an issue with having more than one Network Card (NIC) installed on your unix system. This issue seems to be for all flavors
they support.
Besides the gentleman in this thread that found the airport card workaround
I can not get the CISCO vpn client to work, even the latest version 4.8.00.
I don't have an airport installed, yet.
I'm a work at home unix admin and relied on my second machine this PowerMac to aid in my everyday/night work. I'm stuck in the same
boat. I need this vpn to work as soon as possible and have no way of asking CISCO if or when they will address this issue.
Thx,
paseng

Remote does not find my Itunes Library

I have 4 different mac and use Remote on my Ipod Touch to work with Itunes. Remote cannot connect to one of them (does not find the library). Settings (firewall, airport, account, permission, network...) on all my mac are similar but Remote does not work only with the MacBook Pro. Should I blame his airport card ? Or what ?

I've also version 4.0 on my Ipod and I've checked the port TCP 3689 and UDP 5353 (as asked by Apple support website), they are well opened. I spent too much time on this...I give up Remote.
Anyway thank you very much for trying to help me.

Brand new iMacs & an external USB drive disappeared on one of them - help?

I'm new to this particular forum & I just bought a 2.8 GHz intel iMac (my wife is picking up for me this moment) - my boss just bought a 3.06 GHz intel iMac a few days ago, he installed Parallels & then Vista Ultimate w/SP1. He has an external USB hard drive & it showed up mounted on the desktop. When Vista asked him (voices from the dark side) if he wanted to link the drive to Vista he said yes - that's when the drive disappeared & he said that he couldn't get it back & he said that he couldn't find it with the explorer in Vista either. He tried rebooting, tried reconnecting the drive, doing this w/o launching Vista, etc - but he said that it wouldn't come back. He is not experienced with Macs, only the dark side so he's not familar with the system yet. I have not seen his Mac yet. I'm at work, so I do not have access to a Mac, I cannot offer troubleshooting tips for this cold turkey w/o a Mac in front of me, as it has been over 5 years since I've seen a problem like this.
That is why I'm writing this here, because I know that this is no doubt a simple fix for most of you. I can try to get him to come to this discussions site.
I can't wait to fly my new Mac today - should I just go ahead and re-format (low-level) & install from scratch? Even though I've purchased Parallels also, which needs no partition, should I make a partition anyway, incase i want to also use the Boot Camp route on the other partition?
Thanks 1.0E6,
Gino

Success - He finally did get it back after shutting everything down, powering down, pulling its connection, bring the mac back up sans Parallels/Vista, connect up the drive, drive showed back up, then startup Parallels/Vista.
btw - my new iMac is a dream (2.8/500/24") - I changed the memory to 4 mb, low level formatted the Mac, installed the software & "wow-zer" compared to my older lapstand iMac
btw2 - I had posted before to other forums (Airport, Mail), but this was the 1st time to this particular forum (intel iMac)
Message was edited by: Gino La Pointe

Firewall, Airport, Mail,

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