Pop3 and TLS1.2 in Indy 10

[CHackbart 13]

Hi,

 

this might sound stupid, but it has been a while since I touched this particular code. Somehow connect fails gracefully. The old code was working since ages, but the provider (ionos) switched to TLS 1.2. So I changed my code into:

  POP := TIdPOP3.Create(nil);
  SSL := TIdSSLIOHandlerSocketOpenSSL.Create(nil);
  SSL.SSLOptions.Method := sslvTLSv1_2;
  POP.IOHandler := SSL; //SSL
  Pop.Port := 995;

 

I use openssl-1.0.2u-i386-win32 for OpenSSL. 

 

Does somebody have an idea? 

 

Christian

[Remy Lebeau 1436]

27 minutes ago, CHackbart said:

Does somebody have an idea?

Port 995 is POP3's implicit-ssl port, so make sure you set the TIdPOP3.UseTLS property to utUseImplicitTLS.

 

Alternatively, you can use POP3's explicit-tls port 587 with UseTLS=utUseExplicitTLS instead.

Edited April 21, 2023 by Remy Lebeau

[CHackbart 13]

Wow, this was quick. Thanks  Pop.UseTLS := utUseImplicitTLS; works 🙂

 

Christian

[CHackbart 13]

I now get some error messages on certain accounts with "invalid sequence number". I never saw this before.

 

Nevermind I found the problem.

Edited April 26, 2023 by CHackbart