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Updated email processing.

- Added an option to enable smtp debugging via SMTP_DEBUG. This will
  trigger a trace of the smtp commands sent/received to/from the mail
server. Useful when troubleshooting.
- Added two options to ignore invalid certificates which either do not
  match at all, or only doesn't match the hostname.
- Updated lettre to the latest alpha.4 version.
This commit is contained in:
BlackDex 2020-11-18 12:07:08 +01:00
parent 3fed323385
commit 6faaeaae66
6 changed files with 117 additions and 60 deletions

View file

@ -242,9 +242,9 @@
# SMTP_HOST=smtp.domain.tld
# SMTP_FROM=bitwarden-rs@domain.tld
# SMTP_FROM_NAME=Bitwarden_RS
# SMTP_PORT=587
# SMTP_SSL=true # (Explicit) - This variable by default configures Explicit STARTTLS, it will upgrade an insecure connection to a secure one. Unless SMTP_EXPLICIT_TLS is set to true.
# SMTP_EXPLICIT_TLS=true # (Implicit) - N.B. This variable configures Implicit TLS. It's currently mislabelled (see bug #851) - SMTP_SSL Needs to be set to true for this option to work.
# SMTP_PORT=587 # Ports 587 (submission) and 25 (smtp) are standard without encryption and with encryption via STARTTLS (Explicit TLS). Port 465 is outdated and used with Implicit TLS.
# SMTP_SSL=true # (Explicit) - This variable by default configures Explicit STARTTLS, it will upgrade an insecure connection to a secure one. Unless SMTP_EXPLICIT_TLS is set to true. Either port 587 or 25 are default.
# SMTP_EXPLICIT_TLS=true # (Implicit) - N.B. This variable configures Implicit TLS. It's currently mislabelled (see bug #851) - SMTP_SSL Needs to be set to true for this option to work. Usually port 465 is used here.
# SMTP_USERNAME=username
# SMTP_PASSWORD=password
# SMTP_TIMEOUT=15
@ -259,6 +259,22 @@
## but might need to be changed in case it trips some anti-spam filters
# HELO_NAME=
## SMTP debugging
## When set to true this will output very detailed SMTP messages.
## WARNING: This could contain sensitive information like passwords and usernames! Only enable this during troubleshooting!
# SMTP_DEBUG=false
## Accept Invalid Hostnames
## DANGEROUS: This option introduces significant vulnerabilities to man-in-the-middle attacks!
## Only use this as a last resort if you are not able to use a valid certificate.
# SMTP_ACCEPT_INVALID_HOSTNAMES=false
## Accept Invalid Certificates
## DANGEROUS: This option introduces significant vulnerabilities to man-in-the-middle attacks!
## Only use this as a last resort if you are not able to use a valid certificate.
## If the Certificate is valid but the hostname doesn't match, please use SMTP_ACCEPT_INVALID_HOSTNAMES instead.
# SMTP_ACCEPT_INVALID_CERTS=false
## Require new device emails. When a user logs in an email is required to be sent.
## If sending the email fails the login attempt will fail!!
# REQUIRE_DEVICE_EMAIL=false