Send an email from an account different from the ISP account

[Marqiuz]

Hello,

my first post here on a very informative website.

I have recently come across an interesting problem.

Under my own broadband ISP (Hong Kong based, netvigator.com), I can send email via a different email addres from the ISP (i.. I am using my university email address as opposed to @nevtigator.com), as long as I use the ISP smtp server - i.e. smtp.netvigator.com

My girlfriend cannot however, do this under another ISP (hutchcity.com, also HK based) - the settings are correct as required. Now I have tracked the problem regarding secondary email accounts and servers to a possible Port 25 (correct me if I am wrong). However, I find that this only corresponds to the use of smtp servers other than the ISP based server. I have found on the following site:

https://panel.dreamhost.com/kbase/index.cgi?area=1623

that some ISPs do not allow any other email other than their domain based email addresses to be sent.

I would like any confirmation that this is possible, how it is done (i.e. is there another port that closes?) and how to get around the problem - i.e can I request the ISP to allow specific email adresse be used.

Thanks in advance.

Marq

 

[CrazyAcadian]

Hi

Some ISP restrict the use of their smtp servers to IP's in their domain range. So unless you are connected to the internet via their dialup or broadband services you will not be able to send email via their smtp server..

Unfortunately since it's an IP based restriction, they cannot allow one specific account to use their servers since it might come in on a different IP every time..

Opening up an smtp server to all internet IPs is a big security risj since spammer could and will take advantage of this and get the ISP in trouble

Hope this answers your question

 

[Marqiuz]

Well we are connecting via the ISP of the smtp server...it seems rather that the ISP is refusing to allow other email domains to be sent via their smtp server - is this also a possible SPAM risk that had to be taken care off?

Mark