Sponsored Content
Full Discussion: Sendmail Issue.
Operating Systems Linux Red Hat Sendmail Issue. Post 302443425 by Hari_Ganesh on Sunday 8th of August 2010 11:35:30 PM
Old 08-09-2010
Gurus

I have neither of these configured(Reverse DNS and SMART_HOST)...Infact the machine i am working on is a standalone server not in any domain.

Suppose that i configure both,will smtp-gmail start accepting my mails? If so what is the security that smtp-gmail server has against spammers.How exactly are the smtp servers protected against spammers if all it requires is a SMART_HOST and reverse DNS lookup.

Am asking this to understand the E-Mail setup. I read in howstuffworks.com and got a little understanding...But this thing perplexes me..


Thanks
HG
 

10 More Discussions You Might Find Interesting

1. Linux

Sendmail issue

Hi gurus! I need help to make sendmail to accept unknown user mail. That is if the user does not exist sendmail keep on processing the mail and store it in a some mailbox ... Thanks for any idea! (5 Replies)
Discussion started by: andryk
5 Replies

2. Solaris

sendmail issue

Hi, yesterday I had issues, sendmail was not responding quickly while sending email and users did not receive any email, This happened with sendmail on solaris 10 and also with sendmail on a linux box. Found it is something to do with DNS blacklists, following lists did not work for me,... (2 Replies)
Discussion started by: upengan78
2 Replies

3. UNIX for Dummies Questions & Answers

Issue with sendmail

Hi Team, I have a script written to sendmail along with attachment in html format. The code is export MAILFROM="abc@abc.com" export MAILTO="abc@abc.com" export CONTENT="./GRP_SPI_ERR.html" export SUBJECT="TEST EMAIL: TESTING HTML" { print - "From: $MAILFROM" print - "To: ${MAILTO}"... (3 Replies)
Discussion started by: Vinaykumar1
3 Replies

4. Solaris

Sendmail Issue

Hi, Guru i had configure in my two server to send out the email. One of the server able to send in the reasonable timing. but another not, it delay almost one day or two days but mostly not send at all. below is the syslog when i try to send out the mail. GOOD Server Dec 28 11:29:39... (5 Replies)
Discussion started by: SmartAntz
5 Replies

5. Solaris

Sendmail issue

Hi all, we are using solaris 10. we need to increase every users mail boxes size as all users mail boxes got filled..Please help..its urgent.. Thanks in advance.. (1 Reply)
Discussion started by: bpsunadm
1 Replies

6. AIX

Sendmail issue

My aix boxes have the port 25 listening and I want to bock that. But before that I want to check the recent logs of the sendmail activity and any open sockets using the port. Please advise. (1 Reply)
Discussion started by: ranasarkar
1 Replies

7. Red Hat

Sendmail issue

Hi Every One, one of our server configuration on sendmail config we are using SMAR_HOST ### define(`SMART_HOST', 'mail.xxx.com') and /etc/sysconfig/sednmail DAEMON is setted to NO so let me know why sendmail is not working for this server any this else u need please do let me know (0 Replies)
Discussion started by: venikathir
0 Replies

8. UNIX for Advanced & Expert Users

Sendmail issue

One of the applications sends mail to the users on daily basis. It sends mail within (internal users) the firewall (e.g., username@companyname.com) and not sending mail outside (external users) the firewall (e.g., username@yyyy.com). When we contacted the admin people they informed us to register... (5 Replies)
Discussion started by: abuibi
5 Replies

9. Emergency UNIX and Linux Support

Sendmail issue

Hi, I'm using sendmail version 8.13.8-8.1.el5_7. I'm pretty new to it. The servera are running RHEL 5.8. My question basically is that I would want to know is there a way to change the from address. I would be able to change it using the return address in mailx command. However I would like to... (3 Replies)
Discussion started by: maverick_here
3 Replies

10. Red Hat

Sendmail issue

Dear All , I have some problem in Sendmail , where it was sending mails perfectly fine with the Ip address of the client machine. But suddenly there was an issue , the SMTP takes the IP of the bond1 interface. So the IP could not get validated in the relay server. So how should i send... (1 Reply)
Discussion started by: jegaraman
1 Replies
Mail::Verify(3pm)					User Contributed Perl Documentation					 Mail::Verify(3pm)

NAME
Mail::Verify - Utility to verify an email address SYNOPSIS
use Mail::Verify; DESCRIPTION
"Mail::Verify" provides a function CheckAddress function for verifying email addresses. First the syntax of the email address is checked, then it verifies that there is at least one valid MX server accepting email for the domain. Using Net::DNS and IO::Socket a list of MX records (or, falling back on a hosts A record) are checked to make sure at least one SMTP server is accepting connections. ERRORS
Here are a list of return codes and what they mean: 0 The email address appears to be valid. 1 No email address was supplied. 2 There is a syntaxical error in the email address. 3 There are no DNS entries for the host in question (no MX records or A records). 4 There are no live SMTP servers accepting connections for this email address. EXAMPLES
This example shows obtaining an email address from a form field and verifying it. use CGI qw/:standard/; use Mail::Verify; my $q = new CGI; [...] my $email = $q->param("emailaddr"); my $email_ck = Mail::Verify::CheckAddress( $email ); if( $email_ck ) { print '<h1>Form input error: Invalid email address.</h1>'; } [...] perl v5.8.8 2002-06-09 Mail::Verify(3pm)
All times are GMT -4. The time now is 10:36 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy