Re: [Dorset] Sending Email through talktalk from Abroad.
On 12/01/11 11:13, Tim Allen wrote: I have the same requirement and set up a home machine to be an authenticated SMTP relay over TLS. This then forwards to the ISP smarthost. It's quite simple to set up in Exim4 - if you want I can put my notes up on the Wiki. You'd obviously need to keep your home machine on 24/7 - ideal for one of those netbricks. I tend to run at least one machine at home that's on 24/7 and that listens for ssh. That way I can tunnel smtp via my home machine using: ssh my.home.machine -L 2525:smtp.example.com:25 (Replace my.home.machine with the IP or DNS name of your home, and smtp.example.com with your ISP's SMTP server). This ssh command redirects all traffic to port 2525 on your local machine to port 25 on your ISP's mailserver, but via your home connection. I have an extra SMTP profile in Thunderbird that uses "localhost:2525" as the SMTP server. I did (and still do) run a mailserver at home but find this method simpler and tend to use it more, as it only relies on opensshd. -- Next meeting: Bournemouth, Tue or Wed 2011-02-?? 20:00 Meets, Mailing list, IRC, LinkedIn, ... http://dorset.lug.org.uk/ How to Report Bugs Effectively: http://goo.gl/4Xue
Re: [Dorset] Sending Email through talktalk from Abroad.
Hi Ralph On 12/01/11 11:49, Ralph Corderoy wrote: Hi Tim, Even if if supports authentication, I'd doubt very much that they'd allow access through a non-talktalk line - that's pretty standard practice to prevent use as a spam relay. Ah, is it? I thought auth., or at least secure auth. where credentials aren't passed as plain text, wsa there to permit this kind of thing. You're right, it does seem many ISPs don't provide it though. I see plus.net does, but then I'm found them to be a bit better than average in the past. Talktalk is very consumer-targeted. It would only require a credentials leak from one of their hundreds of thousands of customers and they'd have an open relay on their hands. I've stuck the notes on the Wiki at http://dorset.lug.org.uk/wiki/doku.php?id=articles:eximsecuresmtp Cheers Tim -- Next meeting: Bournemouth, Tue or Wed 2011-02-?? 20:00 Meets, Mailing list, IRC, LinkedIn, ... http://dorset.lug.org.uk/ How to Report Bugs Effectively: http://goo.gl/4Xue
Re: [Dorset] Sending Email through talktalk from Abroad.
Hi Tim, > Even if if supports authentication, I'd doubt very much that they'd > allow access through a non-talktalk line - that's pretty standard > practice to prevent use as a spam relay. Ah, is it? I thought auth., or at least secure auth. where credentials aren't passed as plain text, wsa there to permit this kind of thing. You're right, it does seem many ISPs don't provide it though. I see plus.net does, but then I'm found them to be a bit better than average in the past. http://community.plus.net/library/email/testing-smtp-authentication-using-telnet/ > I have the same requirement and set up a home machine to be an > authenticated SMTP relay over TLS. This then forwards to the ISP > smarthost. It's quite simple to set up in Exim4 - if you want I can > put my notes up on the Wiki. You'd obviously need to keep your home > machine on 24/7 - ideal for one of those netbricks. Clive was thinking of a netbrick like a Sheevaplug for another purpose so this would be a solution for him too. Clive, you'd configure your Thunderbirds to send the email to your netbrick, whether you were home or away, and it, with its talktalk IP address, would then send it onto TT as happens from T'bird now. You mentioned TT's offer may be up soon. If you're thinking of switching ISP it may be worth seeing if they offer authenticated SMTP for when you're out and about. Cheers, Ralph. -- Next meeting: Bournemouth, Tue or Wed 2011-02-?? 20:00 Meets, Mailing list, IRC, LinkedIn, ... http://dorset.lug.org.uk/ How to Report Bugs Effectively: http://goo.gl/4Xue
Re: [Dorset] Sending Email through talktalk from Abroad.
Hi Clive, Ralph On 12/01/11 10:43, Ralph Corderoy wrote: Hi Clive, Regarding being able to send emails through talktalk's SMTP server from a non-talktalk IP address, e.g. abroad, you're not the first person to want to know. http://www.talktalkmembers.com/forums/showthread.php?t=7616 He doesn't get a straight answer unfortunately and I've been unable to find one either. You could contact talktalk direct to find out; I couldn't register on those forums as they want phone and account numbers else I'd ask on http://www.talktalkmembers.com/forums/forumdisplay.php?f=98 Anything Else This section of the support forum is for any other support related question you may have that doesn't fit into one of the above sections such as email and webspace issues. You're after http://en.wikipedia.org/wiki/SMTP_Authentication Anyone else on the list know about talktalk? Even if if supports authentication, I'd doubt very much that they'd allow access through a non-talktalk line - that's pretty standard practice to prevent use as a spam relay. I have the same requirement and set up a home machine to be an authenticated SMTP relay over TLS. This then forwards to the ISP smarthost. It's quite simple to set up in Exim4 - if you want I can put my notes up on the Wiki. You'd obviously need to keep your home machine on 24/7 - ideal for one of those netbricks. Cheers Tim -- Next meeting: Bournemouth, Tue or Wed 2011-02-?? 20:00 Meets, Mailing list, IRC, LinkedIn, ... http://dorset.lug.org.uk/ How to Report Bugs Effectively: http://goo.gl/4Xue
[Dorset] Sending Email through talktalk from Abroad.
Hi Clive, Regarding being able to send emails through talktalk's SMTP server from a non-talktalk IP address, e.g. abroad, you're not the first person to want to know. http://www.talktalkmembers.com/forums/showthread.php?t=7616 He doesn't get a straight answer unfortunately and I've been unable to find one either. You could contact talktalk direct to find out; I couldn't register on those forums as they want phone and account numbers else I'd ask on http://www.talktalkmembers.com/forums/forumdisplay.php?f=98 Anything Else This section of the support forum is for any other support related question you may have that doesn't fit into one of the above sections such as email and webspace issues. You're after http://en.wikipedia.org/wiki/SMTP_Authentication Anyone else on the list know about talktalk? You could attempt to query talktalk's SMTP server to see if it says it supports it. After installing package `netcat', something like printf 'ehlo example.com\nquit\n' | nc -i 2 smtp.talktalk.net 25 Example output for a non-TT one. It's the 250 lines that are interesting. $ printf 'ehlo example.com\nquit\n' | nc -i 2 relay.pair.com 2525 220 relay02.pair.com ESMTP 250-relay02.pair.com 250-PIPELINING 250 8BITMIME 221 relay02.pair.com $ Cheers, Ralph. -- Next meeting: Bournemouth, Tue or Wed 2011-02-?? 20:00 Meets, Mailing list, IRC, LinkedIn, ... http://dorset.lug.org.uk/ How to Report Bugs Effectively: http://goo.gl/4Xue
