[maemo-users] WiFi usage issues.

[From: James Knott]

Jake Wasdin wrote:
> On Tue, 09 Feb 2010 21:41:53 -0500, James Knott 
> <james.knott at rogers.com> wrote:
>
>> Peter Flynn wrote:
>>> have the same issues with some wifi connections, but not all.
>>>
>>> I use IMAP/SSL and SMTP for my email on all devices, and a few 
>>> locations appear to have those ports blocked (pubs, cafes, etc). 
>>> When asked, they all claim not to, but I suspect either they don't 
>>> know, or their provider is blocking them. It all works fine on my 
>>> own network at home.
>> It might be your own ISP blocking SMTP port 25 to prevent spamming.  
>> Some provide another port for those who wish to send email while off 
>> net.  Mine uses 587.
>
> I can second that... most ISPs tend to block all SMTP servers except 
> their own on port 25. GMail and some other services I am sure offer 
> SMTP on port 587. I use GMail's SMTP port on my N800 and have never 
> had an issue sending mail with WiFi (besides the overly-protective 
> county run networks at county buildings here that for the public block 
> all ports besides port 80... can't even access SSL there!).
I have noticed the public city network here, at libraries, community 
centres etc. block OpenVPN on UDP 1194 and also SSH on TCP 22.  I 
haven't tried secure web sites though.