SMTP problem

[dlam9318]

Hi,

I had a dedicated server using plesk 8.2, I try to setup my email client (outlook 2007) to send and receive email. I set both the POP3 and SMTP to mail.mydomain.com, but the strange thing is I can receive email but not able to send email. So I browse through the forum and change my SMTP require SSL with the port point to 465. Then I can sometimes send mail but somethimes it comes back and say the email address I send to do not have SSL. How to I get arround on this? All I want to do is to able send mail and I really don't concern if I use SSL or not. PLease help

Thanks

DLAM

 

[Jayson]

Many of my customers have problems sending email and it's due to their ISP blocking port 25. Most offices use their own ISP mail server, i.e. smtp.telus.net however that does not help the road warriors. For them I have opened up an alternate port for sending which fixed all the problems.

 

[faris]

Search the forum for "smtp port 587" for a solution for this. Basically you get a second smtp instance running on port 587, and change the smtp port to 587 in Outlook.

 

[snyhof]

Jayson, I have tried to search for "smtp port 587" and only this post comes up. Can you provide the link to the post you are referring to? I have always wanted to know how to do this.

Maybe you mean Google - that worked

Thank you,
Steve Nyhof

 

[Jayson]

Hi, I'm not sure about port 587. I just chose port 26 and did the following. I'm currently using Centos5 although this should work on any RH variant. Edit /etc/services added the following,
smtp_alt 26/tcp #new SMTP port
smtp_alt 26/udp #new SMTP port

In the /etc/xinetd.d, I copied smtp_psa to smtp_alt and it worked fine.

 

[faris]

The search function at the bottom of these (new) forums only seems to search the current section.

Use the search option in the gray bar towards the top of the page instead.

Have a look at this:

http://forum.swsoft.com/showthread.php?t=37596&highlight=587

Essentially you copy /etc/xinetd.d/smtp_psa to another file, say /etc/xinetd.d/smtp_587
Then you edit that file and change the first line to say "service submission" instead of service smtp. You save the file. Then you need to restart xinetd using the command "service xinetd restart".

And that's it. You have to make sure that your firewall allows port 587 though.

Then in Outlook or any other email client you change the smtp port to be 587 instead of 25

NOTE: You should remove any dnsrbl filters from the 587 instance.

The whole file will look like this (except that the line server_args = should all be on one line. This new forum software doesn't seem to have a way to post code without wrapping lines):

service submission
{
socket_type = stream
protocol = tcp
wait = no
disable = no
user = root
instances = UNLIMITED
server = /var/qmail/bin/tcp-env
server_args = -Rt0 /var/qmail/bin/relaylock /var/qmail/bin/qmail-smtpd /var/qmail/bin/smtp_auth /var/qmail/bin/true /var/qmail/bin/cmd5checkpw /var/qmail/bin/true
}

 

[snyhof]

Thank you for your quick and thorough explanation. However, I see now that I am in the Linux section of the forum. Any help on the Windows 2003 Server side. I did change one of my emails per the settings from this site and it worked...
http://kb.wisc.edu/helpdesk/page.php?id=2786