Gentoo Forums
Gentoo Forums
Gentoo Forums
Quick Search: in
checking user when sending mail
View unanswered posts
View posts from last 24 hours

 
Reply to topic    Gentoo Forums Forum Index Networking & Security
View previous topic :: View next topic  
Author Message
C001JU135
n00b
n00b


Joined: 14 Aug 2002
Posts: 19
Location: holland

PostPosted: Wed Mar 12, 2003 8:06 am    Post subject: checking user when sending mail Reply with quote

Hi

I got a webserver, and i have seen some people sending bulkmail from a scripted page not using their own name...

My question is, how can i check that the name listed in the "from" really is a mailuser (OR the name in "to", couse some people have a page which sends mail to themselve)

This filter should be placed @ mailserver, i cannot access the pagesources...

Thanx
Back to top
View user's profile Send private message
mglauche
Retired Dev
Retired Dev


Joined: 25 Apr 2002
Posts: 564
Location: Germany

PostPosted: Wed Mar 12, 2003 8:15 am    Post subject: Reply with quote

one small fix would be to lock in your script more tightly, i.e. have few web-controlled parameters.

Another possible sollution would be to check the MX domain of the sender.

i.e. if its user@foobar.com, check the MX record of foobar.com. this helps weeding out many spelling mistakes in email adresses and greatly reduces the number of bounced messages ...
Back to top
View user's profile Send private message
C001JU135
n00b
n00b


Joined: 14 Aug 2002
Posts: 19
Location: holland

PostPosted: Wed Mar 12, 2003 8:21 am    Post subject: Reply with quote

wait a sec...

I am NOT the maker of the scripts...
I am just the ISP..

Thats why i have to filter it between the webserver and the mailserver...
Back to top
View user's profile Send private message
C001JU135
n00b
n00b


Joined: 14 Aug 2002
Posts: 19
Location: holland

PostPosted: Wed Mar 12, 2003 10:13 am    Post subject: Reply with quote

lil kick...

i really need to know this :(
Back to top
View user's profile Send private message
chines
Tux's lil' helper
Tux's lil' helper


Joined: 22 Nov 2002
Posts: 90
Location: Argentina

PostPosted: Mon Mar 17, 2003 8:57 pm    Post subject: Reply with quote

what mail server are you using?
Back to top
View user's profile Send private message
Display posts from previous:   
Reply to topic    Gentoo Forums Forum Index Networking & Security All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum