I have been bombarding the ISP with increasingly angry complaints, but have had no reply – this may be on account of their known inattention to customer complaints.
For a few days after I noticed the problem, I set my outgoing server to Hotmail, which doesn’t use port 25. This worked. Then I signed up to the free option with an American bulk mail server, which uses port 25. This worked.
It may now be that a lot of my outgoing post never arrives when sent through the American port 25 server.
Could this be a problem with my router? Or is it most likely a problem with my ISP?
As an aside, my incoming mail arrives through a private, non-TalkTalk PO3 server. If my outgoing e-mail goes via the American server, does this mean that TalkTalk, and perhaps the British authorities, are unable to monitor my traffic? I’m not practically concerned about being monitored, and the MI5/MI6 budget is so limited, that active spying on people like me may not be an option; and I can’t think of anything I do that would provoke an averagely paranoid state to spying on me.
All help gratefully received.