O2 SMTP questions

[Scramble]

I'm thinking of switching to O2 broadband from Sky.

I have read that O2 prevent you from using any other SMTP server on port 25 other than their own. I'm happy to use their SMTP server (in fact, I would prefer to do so), but I have some questions.

(1) Using their main SMTP server, does O2 attach your O2 e-mail account details to every e-mail you send from another non-O2 address, like Sky do?

(2) I see that they also have a relay server -- I presume that this will not attach your O2 e-mail details to the e-mails you send -- is this correct?

(3) Is this relay server reliable?

(4) Will using this relay server make my e-mails sent from my non-O2 accounts more likely to be blocked as spam?

(5) Is there a limit to the amount of e-mails you can send per day using the O2 SMTP server (not that I generally send a lot, but occasionally I have to do a big mail-out)?

(6) Can I use the DynDNS service with O2, which is the SMTP provider I got to overcome the problems with the Sky SMTP server? The DynDNS website says that it can use ports 25, 465, 2525, 10025, and 10465, but doesn't mention 587, which I have seen mentioned on the internet as a possible alternative port for O2.

Thanks.

[Tony1044]

(1) Using their main SMTP server, does O2 attach your O2 e-mail account details to every e-mail you send from another non-O2 address, like Sky do?
I am on their business package which comes with a free static IP, a business class router and free 24/7 support with a guaranteed next-working-day engineer if a call logged prior to 4.30pm is made that cannot be resolved on the phone...in my conversations with them, the information I got from their techies was that they block port 25 for non-business accounts - when I set my wife's iPhone up to use the O2 SMTP server, it didn't attach @o2.co.uk, but kept the original domain (and from memory they were just smtp.o2.co.uk, nothing mobile specific;

(2) I see that they also have a relay server -- I presume that this will not attach your O2 e-mail details to the e-mails you send -- is this correct?
Not heard of that one - what's it's URL? I'll take a look if you want and try sending a mail from one of my non-o2 accounts

(3) Is this relay server reliable?
Home services rarely have any guarantees of reliability, but ISP's systems' all tend to be highly redundant so it should be

(4) Will using this relay server make my e-mails sent from my non-O2 accounts more likely to be blocked as spam?
Possibly - if it's seen to come from a domain other than the O2 relay, it could be blocked

(5) Is there a limit to the amount of e-mails you can send per day using the O2 SMTP server (not that I generally send a lot, but occasionally I have to do a big mail-out)?
There does not seem to be any information about it, so I've mailed their support and will let you know if/when they come back to me

(6) Can I use the DynDNS service with O2, which is the SMTP provider I got to overcome the problems with the Sky SMTP server? The DynDNS website says that it can use ports 25, 465, 2525, 10025, and 10465, but doesn't mention 587, which I have seen mentioned on the internet as a possible alternative port for O2.
You can use this service - I think my router has a section for it built in already, but...how about this, if possible:

Register your own domain name (I use [url=http://www.heartinternet.co.uk[/url] as they are cheap and allow simple moving of name servers [more in a sec[) and then sign up for a free account at www.dnsexit.com;

Change the name servers of your domain to point to the DNSExit name servers;

Host your own website etc and use the free dynamic dns client to update your IP address automatically every few minutes.

The benefits are that you can your own http ://www.domainname.co .uk / .com / .net etc without having any dyndns.org etc in the name;

DNSExit offer other services if you want to host your own, say, Exchange server then they can provide a backup MX system so if your mail server goes down, they will queue it for you.

My own domain Tony Johncock and mail run through their services from when I was on Sky.

That is a pretty condensed guide and if people are interested, then I am happy to type up a more comprehensive one.

Cheers.

Tony.


Thanks.[/QUOTE]