Norton Internet Security / Norton AntiVirus

[wangneng]

Used to using Windows Live Mail to receive POP3 mail and send SMTP mail on couple of mail 

servers. 

Recently, can not send mail thru one of the mail server while receiving mail is still 

working fine.

Telnet the port 110 of this mail server is OK, but, can not telnet the port 25.

The other mail server is OK on both sending and receiving mail, so as the ports 25 and 110.

I wonder if Norton Internet Security 2010 stops me from sending mail thru this mail server.

Could not find the way to clear the blocking of port 25 for SMTP on this mail server.

Actually, don't know how to do anything on port, on SMTP and POP3 with firewall.

How to fix it?

David

[AllenM Norton Fighter]

Hi David,

What is your version of NIS 2010 from Help & Support > About? Also what OS and SP do you have and is it 32 or 64 bit? When did you install NIS? Do you have any other security software installed besides NIS?

It is highly unlikely that NIS would cause problems with sending and receiving email but you could always briefly try to turn OFF the Email antivirus scan in Network Settings and the NIS firewall just to make sure.

If neither of these make a difference then it is not NIS causing it.

Do you have a home router? It is possible the router could be causing issues. You could try to bypass the router and connect your computer directly to see if there is a difference.

Otherwise have you checked with your ISP to make sure there is not some temporary problem on their side?

How long has this problem been going on? Did it just start recently?

Hope this helps.

Best wishes.

Allen

[wangneng]

Thanks, Allen.

More specifically, the trouble is:Can send and receive windows live mail thru the mail server of my ISP.

But can't send mail thru other mail servers.

Windows Live Mail error msg:connection to server fail。

server: 'xxx.com'

Windows Live Mail error ID: 0x800CCC0E

protoco;: SMTP

port: 25

secure(SSL): no

communication error: 10013

version of NIS 2010 17.7.0.12

OS win 7 32 bit home premium

It seems to solve after changing the smtp server to my ISP for the other mail accounts.

David

[floplot Norton Fighter]

Hello wangneng

This is a problem coming from your ISP I believe. Your ISP only allows you to use their email servers to send out email. This is a problem that you have to take up with your ISP.

[TomiRed Super Spam Squasher · Accepted solution]

ISPs in general do not allow customers to use SMTP servers on port 25 other than their own.

You can thus configure all your mail accounts to use your ISP's SMTP server. Another alternative is to use Gmail SMTP servers, but as they use SSL, NIS will not be able to scan outgoing mail in that case.