David_Wallis

I can collect my home mail... no probs (port 110)..

Now managed to get networks team to open port 25..

but it doesnt let me send as I am on a different backbone? or something.

Any ideas how I can do this, doubt service provider will change it to allow from this IP... I take it this is a no go as it involves being open for relaying?

Not much chance of doing it through works ISP or MailServer..

No go?

David

ozzy

David,

To send out, you only need port 25 open. The firewall should handle a rule defining outgoing SMTP mail from your PC only. That should keep the local support happy.

Trouble is that a lot of ISP won't accept mail from an IP address not within their network.

I can receive all my home e-mail here @ work and since I manage the firewall I've opened it up for my PC. Trouble is Blueyonder will not accept mail from my companys IP address.

That's the ISP restrictions and if they say no, then you have no way of sending mail. You could use your ISP's web interface to send mail or some other method using your home PC (say a VPN), but you won't be able to send directly via your ISP by the sounds of it.

Stefan

dsmith

Yep mosts ISPs allow access only from their infrastructure for SMTP for anti-spam.

Try using your work's ISP SMTP server. It doesn't actually make any diff which SMTP server you send through.

Deano

David_Wallis

hmm... so if I find out the energis / planet smtp ip, change the rule to point to that...



David

ozzy

David,

My work use Demon, so if I configure my personal mail to send out using their server it works fine.

Once you know the server, use the TELNET xx.xx.xx.xx 25 (where xx.xx.xx.xx is the IP address or hostname of the mail server) to check that you can go out on port 25 through your firewall. You should get a welcome message from the ISP's mail server.

Stefan

Miles

Or find if one of your internal email servers has the SMTP port open. I could receive[1] directly from mail.binternet.com through the firewall and send mail as my BTInternet account via my company's SMTP host server internally out to the internet.

These restrictions on relaying are in place to prevent spamming, and to be truthful you'd be a complete fool to not restrict what can send through your SMTP server on the 'net. Of course, you could try your luck at finding an open relay, but chances are it's on a RBL or will be shut off pretty immediately.

[1] At least I could until last weekend when the network boys switched off that port. [img]images/smilies/mad.gif[/img]

David_Wallis

we disabled it from all ip's except specific internally, due to us lot pretending to send messages from people...

David

David_Wallis

Oh dear... looks like after getting a network diagram of the mail team that I can now send email, and he can too..

David

JackClark

I was told that FTgate would do the job. Didn't get round to trying it.

what would scooby do

yup most isp's such as BT etc do this - only other way is if they offer a webmail service

[Edited by ChrisB - 11/12/2002 1:17:34 PM]

stevencotton

Looks like you have a choice of five


[Edited by stevencotton - 11/12/2002 12:42:36 PM]