cannot set SMTP addr with env var

[unixslayer]

With mhsendmail installed on application container and MailHog on another, I'm unable to set smtp addr using ENV vars. mhsendmail keeps trying to use localhost:1025.

docker-compose.yml:

services:
  fpm:
    container_name: fpm
    image: php:7.2-fpm
    environment:
      - MH_SENDMAIL_SMTP_ADDR="mailhog:1025"
  mailhog:
    container_name: mailhog
    image: mailhog/mailhog
    ports:
      - "1025:1025"
      - "8025:8025"

php.ini:

sendmail_path = /usr/local/bin/mhsendmail

test call run from fpm container:

php -r "\$from = \$to = 'your.emailaddress@gmail.com'; \$x = mail(\$to, 'subject'.time(), 'Hello World', 'From: '. \$from); var_dump(\$x);"

result:

error sending mail
dial tcp 127.0.0.1:1025: getsockopt: connection refused
bool(false)

running the same test from host works fine.

[Santana1053]

I am also experiencing this issue. A temporary fix would be to set

sendmail_path = "/usr/local/bin/mhsendmail --smtp-addr=mailhog:1025"

[karlsminton]

@Santana1053 I'm trying this method but not having any luck with it.

[manuelcanepa]

Same here. If use the local ip instead of mailhog its works. Like this:
sendmail_path = "/usr/local/bin/mhsendmail --smtp-addr=172.30.0.4:1025"

[brammeleman]

Looks like this has been fixed in pull request #12, but is isn't in the released binaries. You can use the environment variable MH_SENDMAIL_SMTP_ADDR to set the smtp server. If you create a sendmail symlink that points to mhsendmail, you can send mail from scripts without any configuration changes.
The other environment variable that you can set is MH_SENDMAIL_FROM.

[stefumies]

Its July 2022 and this still isn't in the binaries?

[ParMesSoins]

i get the same problem.
Install by this way resolve the problem:

RUN curl -LkSso /usr/bin/mhsendmail 'https://github.com/mailhog/mhsendmail/releases/download/v0.2.0/mhsendmail_linux_amd64'&& \
    chmod 0755 /usr/bin/mhsendmail && \
    echo 'sendmail_path = "/usr/bin/mhsendmail --smtp-addr=mailhog:1025"' > /usr/local/etc/php/php.ini;