It would help if you clarified the question.

Are you asking about outgoing TCP port 25 blocking, incoming TCP port 25 blocking or both?


Some ISPs block outgoing TCP port 25 to force e-mail to go via a smarthost (to which you typically connect on TCP port 587, authenticating either by your IP address or with ISP issued credentials). This is done to help prevent spamming, including malware sending e-mail direct to mail exchangers.

I was asking about incomming and outgoing, but would be interested in *any* port restrictions that the ISP is imposing

TIA
.

Just to add to my previous post, Tsohost for example provide IMAP on 993 and SMTP on 465. No ISP blocks those so far as I know.

Port 25 is the default port used to transport or communicate email across the Internet using the SMTP protocol.

I'm currently using different ports, but it involves using another server and I'd prefer to keep things simple.

Thanks.

Not familiar with that one. Will continue to use a different port if I need to, but like I said would prefer to keep things simple.

It's not complicated from the user point of view. Just select the host's port. If you are running your own server then I don't know what is involved in presenting such ports to the rest of the world.

In reply to a post by hk11:

I'm currently with EE and they block port 25, as do AOL. I think this is becoming more common with ISPs now, which is fine if they have an option to remove the block.

Was just checking if SSE have a policy, as I don't want to have to mess around redirecting mail as I have to now.

Just my two penny worth on this. It rather depends on what you are using as your reply address. If it is the email address provided by the ISP and you were physically connected to their network, then outgoing emails via port 25 will probably work just fine. Port 26 may also be available.

However I sort of gain the impression that you have your own domain name and it might therefore be more beneficial to use the SMTP facilities provided by that service.

Lastly wherever possible consider using IMAP rather the POP3.

And as a footnote, before signing up with SSE read carefully all the comments on this website to determine if you wish to tie yourself into SSE for your broadband service for quite a while.

Thanks Trolley.

Yes, own domain and own email server, but do use fetchmail to collect some old ISP mail, so for example freeserve address works OK on my current EE connection as it is really Orange.

I don't use domain name suppliers service, POP or IMAP (other than on the above old accounts). It's direct connection SMTP via exim.

Didn't realise there was any time tie-in, other than the normal contract, but will check SSE's website: cheers.

Edit: You say "this website". I did a search but couldn't find anything else on SSE, other than my two posts.

Edited by hk11 (Tue 26-May-15 20:06:53)

Having had a good look through their T&Cs, I can find no reference to blocking Port 25 for EMail.

Seems your good to go.

Thanks.

Just got to get my MAC from EE now. They said 5 days, but as usual .......