Problems receiving emails

nicktsak

Hello,

In my time using vivaldi.net email address I have encountered many times issues with receiving emails. Many have said that they are unable to send me emails. For example a response I got from a company where I bought something:

"The reason for not receiving your order confirmation might be due to your email provider not aligning with the new personal data regulations (TLS 1.2), making it legally challenging for us to send your order confirmation/invoice."

And from an individual:

"I tried to send you email but it was sent back because it was blocked for security reasons, I am unable to send you an email."

How can I fix that and ensure I will not miss any email in the future?

DoctorG

@nicktsak To Vivaldi community mail account (the vivaldi mail servers) can be connected by modern TLS 1.2 and 1.3.

Vivaldi Mail itself is able to connect by TLS 1.2 and 1.3.

The mail server smtp.vivaldi.net receiving mails from other mail servers connects by TLS 1.0, TLS 1.1, TLS 1.2, TLS 1.3.
⇒ https://www.immuniweb.com/ssl/smtp.vivaldi.net/t6V8sKoz/

Test with app sslscan

T:\>sslscan --starttls-smtp smtp.vivaldi.net:25
Version: 2.1.5 Windows 64-bit (Mingw)
OpenSSL 3.0.14 4 Jun 2024

Connected to 31.209.137.12

Testing SSL server smtp.vivaldi.net on port 25 using SNI name smtp.vivaldi.net

  SSL/TLS Protocols:
SSLv2     disabled
SSLv3     disabled
TLSv1.0   enabled
TLSv1.1   enabled
TLSv1.2   enabled
TLSv1.3   enabled

  TLS Fallback SCSV:
Server supports TLS Fallback SCSV

  TLS renegotiation:
Secure session renegotiation supported

  TLS Compression:
Compression disabled

  Heartbleed:
TLSv1.3 not vulnerable to heartbleed
TLSv1.2 not vulnerable to heartbleed
TLSv1.1 not vulnerable to heartbleed
TLSv1.0 not vulnerable to heartbleed

  Supported Server Cipher(s):
Preferred TLSv1.3  256 bits  TLS_AES_256_GCM_SHA384        Curve 25519 DHE 253
Accepted  TLSv1.3  256 bits  TLS_CHACHA20_POLY1305_SHA256  Curve 25519 DHE 253
Accepted  TLSv1.3  128 bits  TLS_AES_128_GCM_SHA256        Curve 25519 DHE 253
Preferred TLSv1.2  256 bits  ECDHE-RSA-AES256-GCM-SHA384   Curve 25519 DHE 253
Accepted  TLSv1.2  256 bits  DHE-RSA-AES256-GCM-SHA384     DHE 2048 bits
Accepted  TLSv1.2  256 bits  ECDHE-RSA-CHACHA20-POLY1305   Curve 25519 DHE 253
Accepted  TLSv1.2  256 bits  DHE-RSA-CHACHA20-POLY1305     DHE 2048 bits
Accepted  TLSv1.2  256 bits  DHE-RSA-AES256-CCM8           DHE 2048 bits
Accepted  TLSv1.2  256 bits  DHE-RSA-AES256-CCM            DHE 2048 bits
Accepted  TLSv1.2  256 bits  ECDHE-ARIA256-GCM-SHA384      Curve 25519 DHE 253
Accepted  TLSv1.2  256 bits  DHE-RSA-ARIA256-GCM-SHA384    DHE 2048 bits
Accepted  TLSv1.2  256 bits  ECDHE-RSA-AES256-SHA384       Curve 25519 DHE 253
Accepted  TLSv1.2  256 bits  DHE-RSA-AES256-SHA256         DHE 2048 bits
Accepted  TLSv1.2  256 bits  ECDHE-RSA-CAMELLIA256-SHA384  Curve 25519 DHE 253
Accepted  TLSv1.2  256 bits  DHE-RSA-CAMELLIA256-SHA256    DHE 2048 bits
Accepted  TLSv1.2  256 bits  ECDHE-RSA-AES256-SHA          Curve 25519 DHE 253
Accepted  TLSv1.2  256 bits  DHE-RSA-AES256-SHA            DHE 2048 bits
Accepted  TLSv1.2  256 bits  DHE-RSA-CAMELLIA256-SHA       DHE 2048 bits
Accepted  TLSv1.2  256 bits  AES256-GCM-SHA384
Accepted  TLSv1.2  256 bits  AES256-CCM8
Accepted  TLSv1.2  256 bits  AES256-CCM
Accepted  TLSv1.2  256 bits  ARIA256-GCM-SHA384
Accepted  TLSv1.2  256 bits  AES256-SHA256
Accepted  TLSv1.2  256 bits  CAMELLIA256-SHA256
Accepted  TLSv1.2  256 bits  AES256-SHA
Accepted  TLSv1.2  256 bits  CAMELLIA256-SHA
Accepted  TLSv1.2  128 bits  ECDHE-RSA-AES128-GCM-SHA256   Curve 25519 DHE 253
Accepted  TLSv1.2  128 bits  DHE-RSA-AES128-GCM-SHA256     DHE 2048 bits
Accepted  TLSv1.2  128 bits  DHE-RSA-AES128-CCM8           DHE 2048 bits
Accepted  TLSv1.2  128 bits  DHE-RSA-AES128-CCM            DHE 2048 bits
Accepted  TLSv1.2  128 bits  ECDHE-ARIA128-GCM-SHA256      Curve 25519 DHE 253
Accepted  TLSv1.2  128 bits  DHE-RSA-ARIA128-GCM-SHA256    DHE 2048 bits
Accepted  TLSv1.2  128 bits  ECDHE-RSA-AES128-SHA256       Curve 25519 DHE 253
Accepted  TLSv1.2  128 bits  DHE-RSA-AES128-SHA256         DHE 2048 bits
Accepted  TLSv1.2  128 bits  ECDHE-RSA-CAMELLIA128-SHA256  Curve 25519 DHE 253
Accepted  TLSv1.2  128 bits  DHE-RSA-CAMELLIA128-SHA256    DHE 2048 bits
Accepted  TLSv1.2  128 bits  ECDHE-RSA-AES128-SHA          Curve 25519 DHE 253
Accepted  TLSv1.2  128 bits  DHE-RSA-AES128-SHA            DHE 2048 bits
Accepted  TLSv1.2  128 bits  DHE-RSA-CAMELLIA128-SHA       DHE 2048 bits
Accepted  TLSv1.2  128 bits  AES128-GCM-SHA256
Accepted  TLSv1.2  128 bits  AES128-CCM8
Accepted  TLSv1.2  128 bits  AES128-CCM

nicktsak

@DoctorG so why do you think am i getting these errors and I am unable to receieve emails?

DoctorG

@nicktsak I send you 2 mails to your nicktsak mail account. test at gwendragon de and doctorg at vivaldi net Please answer them, fort check. I got two replys fro you.
And i know both mail server send over TLS.

nicktsak

@DoctorG ok so this means that the problems I had did not come from my side, but the others'?

Thank you for the help by the way, appreciated.

DoctorG

@nicktsak From which mail domain you can not receive mails?
Which Windows and Vivaldi version (see Help → About)?