On Sunday, 22 January 2023 22:33:50 GMT Peter Humphrey wrote: > On Thursday, 19 January 2023 09:30:34 GMT I wrote: > > I'll see it it's my ISP who's bouncing the message. > > It looks as though they did reject the mail. I asked them please to let it > through just this once, and now it's sitting on their server (my ISP's). > Unfortunately, my local postfix is rejecting it because it's over "a fixed > limit". I tried turning up the two likely-looking limits in /etc/postfix/ > bounce.cf.default, but that just removed the error message - the mail > remained at my ISP. > > What else can I try? > > I use fetchmail to collect the POP3 mail and forward it to postfix for > dovecot to serve as SMTP. This is the first trouble I've had with it and > external mail.
If you want to try an old school approach, but with a more modern encryption method, you could try 'openssl s_client' and then list messages and retrieve the one you're interested in. Something like this: openssl s_client -connect pop.some_server.com:995 -crlf -starttls pop3 then use server commands[1] as you would over a telnet connection, e.g. USER peter PASS s3cr3tPa77 STAT LIST RETR 5 DELE 5 QUIT The TOP command may also be useful if you wish to only check the top few lines of a (large) message to decide if you want to retrieve the rest of it. TOP 5 10 Or if your ISP offer a webmail front end to their server, it should be easier to access the message with a browser. [1] https://www.ietf.org/rfc/rfc1939.txt
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