?
Solved

Unix Networks question

Posted on 1997-09-23
9
Medium Priority
?
221 Views
Last Modified: 2013-12-23
How to prevent some send me some large attactment file with email?
0
Comment
Question by:st
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
9 Comments
 
LVL 84

Expert Comment

by:ozo
ID: 1582612
how about setting
M=64000
for your delivery agent in sendmail.cf
0
 
LVL 4

Expert Comment

by:jlms
ID: 1582613
You can not prevent it, at most you can purge it when it arrives.
Depending of how you get your e-mail (pop account in ISP or maybe you are lucky and have your own server, then you can try the option provided in th previous comment by ozo).
0
 
LVL 1

Author Comment

by:st
ID: 1582614
I need to dial-up to ISP.
How can I check the Sender Name, Subject or attacted file size/name before download the mail??

0
Get proactive database performance tuning online

At Percona’s web store you can order full Percona Database Performance Audit in minutes. Find out the health of your database, and how to improve it. Pay online with a credit card. Improve your database performance now!

 
LVL 5

Expert Comment

by:julio011597
ID: 1582615
 You cannot have control on what gets on your Mail server machine - and your ISP can just specify maxsize for your mailbox folder as a whole.

What you can do is just getting a good mail reader which lets you specify filters based on names and sizes.

Another option would be writing your own mail reader.

Both ways aren't but what jlms has already said:

> You can not prevent it, at most you can purge it when it arrives.

Cheers, julio

P.S. you should reject this one, as well, just to stay consistent...
0
 
LVL 1

Author Comment

by:st
ID: 1582616
Thank you for your kind of help.
0
 
LVL 5

Expert Comment

by:n0thing
ID: 1582617
Agree on "you cannot prevent it". The only way is for your mail
admin to set the message size in sendmail.cf. That would apply to all the users on the same mail gateway. But others could still
mailbomb you with zillions of little messages. With newer version
of sendmail 8.8.7, you could have a spam filter set into it.
But from the user point, you cannot do or prevent it.

Regards,
Minh Lai
0
 
LVL 84

Expert Comment

by:ozo
ID: 1582618
I don't think the sendmail.cf size neccessarily has to be the same for all users.
the administrator should be able select different delivery agents in rule set 0
depending on the user name

(BTW n0thing, have you any experience in setting spam filters in 8.8.7?)
0
 
LVL 2

Expert Comment

by:frederico
ID: 1582619
Depending on your ISP you might be able to connect to him and see
and/or delete the mail you have in the mailbox.

Here in Portugal at "telepac.pt" my ISP allows that.
Before I go to the mail program I use Netscape to access
the mailbox they have and I see if I have mail and I can delete
it if I want.

Best
0
 
LVL 2

Accepted Solution

by:
df020797 earned 160 total points
ID: 1582620
In the Mailer methods for smtp you can define the largest size of mails you wanna handle... M=1000000 as an example sets teh largest size to 1 MB. Mails not fitting into the M directive is bounced.
0

Featured Post

What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In this article, I am going to show you how to simulate a multi-site Lab environment on a single Hyper-V host. I use this method successfully in my own lab to simulate three fully routed global AD Sites on a Windows 10 Hyper-V host.
Make the most of your online learning experience.
Monitoring a network: how to monitor network services and why? Michael Kulchisky, MCSE, MCSA, MCP, VTSP, VSP, CCSP outlines the philosophy behind service monitoring and why a handshake validation is critical in network monitoring. Software utilized …
Monitoring a network: why having a policy is the best policy? Michael Kulchisky, MCSE, MCSA, MCP, VTSP, VSP, CCSP outlines the enormous benefits of having a policy-based approach when monitoring medium and large networks. Software utilized in this v…
Suggested Courses

762 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question