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a way to set up a kind of 'catchall'

Printed From: LogSat Software
Category: Spam Filter ISP
Forum Name: Spam Filter ISP Support
Forum Description: General support for Spam Filter ISP
URL: http://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6951
Printed Date: 21 October 2017 at 9:13pm


Topic: a way to set up a kind of 'catchall'
Posted By: yapadu
Subject: a way to set up a kind of 'catchall'
Date Posted: 21 May 2011 at 9:29am
We get emails like this a lot from our customers:

I would like to know if there is a way to set up a kind of 'catchall' email address, to where all email sent to users not yet added in the domain should be sent. 


Anyone else get questions from customers (or potential customers) like this?  Does anyone have a solution to implement catchall address support?





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I am a user of SF, not an employee. Use any advice offered at your own risk.



Replies:
Posted By: AndrewD
Date Posted: 24 May 2011 at 9:33pm
If i remember right from previos conversations with you, You are running spamfilter with an allowed list of users, as this is how you control your billing. 
As spamfilterISP will reject any meseage that is to a user that is not added to the allowed recipient list, there would be no way to have them forwarded on to a catchall.
Besides this would be a loop around your billing procedure.
If i am incorrect and you are not using an allowed recipient list then the catchall would have to be done at the end domain exchange server. This is certainly possible with Microsoft exchange. 

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Spamfilter web interface. www.tyrexpg.com.au

See http://www.logsat.com/SpamFilter/Forums/forum_posts.asp?TID=6883


Posted By: yapadu
Date Posted: 24 May 2011 at 9:43pm
Yes, we are using the allowed list.

The catchall (as I see it) is similar in nature to the alias problem I was talking about before.

I see both the alias & the catch all problems I am dealing with to be a limitation of spamfilter.

As you mention the catch all can be done with exchange (and most other email systems).  Any unknown address automatically would forward to a single specific mailbox.

The problem with putting spamfilter in front (and doing billing control with the allowed list) is it takes away the ability.  I know I can put *@domain.com in the allowed list and it would pass all email through, those who want the catchall could then process it on their server as you mention.

Problem is spamfilter does not have a way to re-write the recipient address so again someone can have 1000 email addresses, enable the catchall and they get past the billing system (allowed list).

Getting rid of the allowed list would also cause a massive amount of email to pass through our server to clients that should not be.  It is excellent to have both for billing and the ability to stop invalid addresses from passing through the server.

Then I run into the customers who want the catchall and I'm in a catch 22 not being able to offer it to those who want it.

I want to see if anyone has a work around or if anyone else has the same need as we do; it can't be that we are the only group with this requirement.


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I am a user of SF, not an employee. Use any advice offered at your own risk.


Posted By: AndrewD
Date Posted: 26 May 2011 at 9:52pm
It is the old "you cant have your cake and eat it too"
 
I understand whta you want is the following steps to apply.
1. Email comes in to spamfilter
2. Email recipient is checked against allowed receivers.
   2a. If passes recipient test then continue as normal
   2b. If fails recipient test then change the recipient to mailto:%7bcatchall@recipientdomain.com - {catchall@recipientdomain.com ] and process as normal. (also probably require subject, or body to be modified to note who the original recipient should have been.)
3. Process email as normal.
 
Currently there is no option to do this, and i dont know of any product that does have this.
 


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Spamfilter web interface. www.tyrexpg.com.au

See http://www.logsat.com/SpamFilter/Forums/forum_posts.asp?TID=6883


Posted By: yapadu
Date Posted: 26 May 2011 at 10:37pm
Actually, what I want to do with the aliases and catch-all are very mainstream
among hosted solutions.  I can't believe more are not interested in the ability 
to have these things:

Google Apps - http://www.google.com/support/a/bin/answer.py?answer=33962 - Catch-all address
Google Apps - http://www.google.com/support/a/bin/answer.py?answer=33327 - Email aliases  

GFI MailProtection - http://kbase.gfi.com/showarticle.asp?id=KBID003750 - Email aliases  

Spam Hero - http://www.spamhero.com/support/78469/Should_I_turn_off_the_catch-all_feature.php - Catch-all address  

CudaMail - http://www.cudamail.com/Default.aspx - Domain aliases  


I am not a user of these other services, but doing a search reveals what we want to offer is being offered by others and based on the number of queries from customers we receive these features are wanted by the end users.

We never get requests for mail archiving or TLS support, but catch-all and aliases are requested often.

We are currently trying to come up with a solution so we can remain competitive with others in the market, despite spamfilter not offering these things.  One idea we have is to setup a Linux server, any customer who enables alias or catch-all will have their email routed to the Linux box after spamfilter processes and we can do it from there, but what a hassle.


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I am a user of SF, not an employee. Use any advice offered at your own risk.


Posted By: yapadu
Date Posted: 26 May 2011 at 10:55pm
Implementing the user alias and catch all seem fairly easy to me, while I am not the developer of spamfilter I have been a developer for 20+ years.

Currently in authorized too email you might have something like this:

dan@mail.com
keira@mail.com
mark@mail.com
postmaster@mail.com
support@mail.com


It could allow something like this:

dan@mail.com
keira@mail.com
mark@mail.com
postmaster@mail.com
support@mail.com
alias@mail.com:mark@mail.com
*@mail.com:dan@mail.com

The re-write that is necessary is handled by spamfilter and your good to go with offering new services for paying enterprise customers.


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I am a user of SF, not an employee. Use any advice offered at your own risk.


Posted By: AndrewD
Date Posted: 26 May 2011 at 11:03pm
Google Apps - http://www.google.com/support/a/bin/answer.py?answer=33962 -
Google Apps - http://www.google.com/support/a/bin/answer.py?answer=33327 - - Email aliases  
As i have spoken to you before my Web interface does allow for EMail aliases.
 
Spam Hero - http://www.spamhero.com/support/78469/Should_I_turn_off_the_catch-all_feature.php -
 
CudaMail - http://www.cudamail.com/Default.aspx -


Posted By: yapadu
Date Posted: 26 May 2011 at 11:09pm
We have the same solution as what you call aliases (I don't consider them aliases though and we call them something else), where users get a single quarantine report area but from the backed the functionality is different.

I don't think there are many real enterprise systems using spamfilter, or this issue would come up more often.


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I am a user of SF, not an employee. Use any advice offered at your own risk.


Posted By: ImInAfrica
Date Posted: 20 June 2011 at 8:22am
Hi,

Access the Theme Editor from the Administration > Appearance > Editor menu.
Click on the header.php file, make the changes and save.

this should work for you. If you have problems let me know.


Posted By: ImInAfrica
Date Posted: 20 June 2011 at 8:23am
oops, wrong forum. sorry about that.


Posted By: yapadu
Date Posted: 20 June 2011 at 6:49pm
ImInAfrica,

It happens to the best'of'em at one time or another.


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I am a user of SF, not an employee. Use any advice offered at your own risk.


Posted By: ImInAfrica
Date Posted: 20 June 2011 at 7:31pm
Yapadu, i take GREAT offense to your remark above! GREAT offense.
This was a genuine mistake with posting to the wrong forum. 

I have been a paid user of spamfilter for over 6 years, and am disgusted that you think I post in order to get backlinks.

I was going to comment to you about the problem you described above, and kindly provide you with the scripts I wrote in order to resolve it in the quarantine area.

I guess I won't be providing you with the scripts.

The solution is very simple
in your quarantine area (whatever scripts you use to access it) you need to create an alias for the user that logs in. your SQL query will then pick up all the spam for that users and it's aliases.

As far as I am aware SpamFilter was designed to be as seemless as possible to the mail process (Roberto can correct me if that has changed). So the less mail logic there is in SF the better it is. What you're requesting above is a mail server feature, which will most likely make SF more cumbersome.

Now, if you want to know anything about virtual offices, feel free to ask me!





Posted By: yapadu
Date Posted: 20 June 2011 at 8:49pm
A modification of the web GUI is not something I am looking for, we have that already but we call the feature Shadow Account not an alias.  An alias to us uses the exact same whitelist/blacklist etc. etc.  It should be the exact same and all incoming messages to specifically to the target mailbox.

Yes, directing the incoming email to the correct mailbox can be processed by the email server itself.

However, we are running spamfilter enterprise and produce spam protection as a service for others.  We do not control the final destination server.

The result is if we leave it up to our users, they can cheat us on every alias if they wish. 

I suppose we could offer a limited number of aliases, knowing that we are potentially allowing additional mailbox filtering.

As it stands right now, to us at least it seems like the limitation is in spamfilter.


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I am a user of SF, not an employee. Use any advice offered at your own risk.



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