I reported this issue to my mail server admin today after another failed attempt at 1602 (4:02 p.m.) and got back the following:
How delightful: Our logs show a connection attempt from your IP address at 1602. I know it's yours because that IP passed another message from you to us just three minutes later.
Here is what the log says:
2017-02-27 13:01:59 [Worker_1] Error: Worker_1 accept_SSL to client
18.104.22.168 failed IO::Socket::SSL=GLOB(0x494ca524)
(timeout: 5 s) : SSL wants a read first
SSL has rather stringent rules on what has to happen when.
Apparently, the current version of pdfforge's pdfcreator violates those rules.
I relaxed a few parameters; please try again (and let us know when you did).
But even if this helps, pdfforge should look into this.
Sent another attempt at 1710. It also failed. Response from admin:
The error you see is likely a protocol error: pdfcreator sends before it should, or it doesn't send even when it is expected to.