Mail not sent in production server

[kon3ko]

• Laravel Version: 8.26.1
• PHP Version: 8.0.17

Description:

I tried sending mail from local server, it works fine via smtp or ses.
But when I try it in production, it doesn't work.
I have tried using Swift_Plugins_Loggers. to see it working But found that it started working and then stopped working. without sending any values after startup

0 => "++ Starting Swift_SmtpTransport"
1 => "<< 220 SG ESMTP service ready at geopod-ismtpd-4-1"
2 => ">> EHLO api.myweb.com"
3 => """
  << 250-smtp.sendgrid.net
  250-8BITMIME
  250-PIPELINING
  250-SIZE 31457280
  250-STARTTLS
  250-AUTH PLAIN LOGIN
  250 AUTH=PLAIN LOGIN
  """
4 => ">> STARTTLS"
5 => "<< 220 Begin TLS negotiation now"
6 => ">> EHLO api.myweb.com"
7 => """
  << 250-smtp.sendgrid.net
  250-8BITMIME
  250-PIPELINING
  250-SIZE 31457280
  250-STARTTLS
  250-AUTH PLAIN LOGIN
  250 AUTH=PLAIN LOGIN
  """
8 => ">> AUTH LOGIN"
9 => "<< 334 VXNlcm5XXXXX"
10 => ">> YXBpa2V5"
11 => "<< 334 UGFzcXXXXX"
12 => ">> U0cuZEJWNU5XVkhTbnV4YlJJNFItWWpIZy45VWc3ejhrZzl2QVpVMll3MTIybktDMVhBVFRNeEc4dmxDNXXXXXXXX"
13 => "<< 235 Authentication successful"
14 => "++ Swift_SmtpTransport started"
15 => "++ Stopping Swift_SmtpTransport"
16 => ">> QUIT"
17 => "<< 221 See you later"
18 => "++ Swift_SmtpTransport stopped"

It seems this problem is not due to the port not being opened to connect. because it is connected successfully.
I tried many things but it appears that it doesn't work.
Is it possible that some packages have to be installed on linux for it to work?

Below is a log that logs the successful mail delivery process on local dev.

0 => "++ Starting Swift_SmtpTransport"
1 => "<< 220 SG ESMTP service ready at geopod-ismtpd-6-0"
2 => ">> EHLO myweb.test"
3 => """
  << 250-smtp.sendgrid.net
  250-8BITMIME
  250-PIPELINING
  250-SIZE 31457280
  250-STARTTLS
  250-AUTH PLAIN LOGIN
  250 AUTH=PLAIN LOGIN
  """
4 => ">> STARTTLS"
5 => "<< 220 Begin TLS negotiation now"
6 => ">> EHLO myweb.test"
7 => """
  << 250-smtp.sendgrid.net
  250-8BITMIME
  250-PIPELINING
  250-SIZE 31457280
  250-STARTTLS
  250-AUTH PLAIN LOGIN
  250 AUTH=PLAIN LOGIN
  """
8 => ">> AUTH LOGIN"
9 => "<< 334 VXNlcm5XXXX"
10 => ">> YXBpa2V5"
11 => "<< 334 UGFzc3XXXXX"
12 => ">> U0cuZEJWNU5XVkhTbnV4YlJJNFItWWpIZy45VWc3ejhrZzl2QVpVMll3MTIybktDMVhBVFRNeEc4dmxDNUcXXXXXX"
13 => "<< 235 Authentication successful"
14 => "++ Swift_SmtpTransport started"
15 => ">> MAIL FROM:<info@domain.com>"
16 => ">> RCPT TO:<contact@domain.com>"
17 => ">> DATA"
18 => "<< 250 Sender address accepted"
19 => "<< 250 Recipient address accepted"
20 => "<< 354 Continue"
21 => """
  >> 
  .
  """
22 => "<< 250 Ok: queued as fZQj97jUQumG1loguAEV6Q"
23 => "++ Stopping Swift_SmtpTransport"
24 => ">> QUIT"
25 => "<< 221 See you later"
26 => "++ Swift_SmtpTransport stopped"

[kon3ko]

In short, the system just doesn't have a destination for the mail to send and therefore stops working.

Mail::to(env('MAIL_SENT_CONTACT_US'))
    ->send(new ContactUsMail($name, $email, $tel, $organization, $message));

It seems that if we use config:cache , the env cannot be read.
now it's working normally

[brunogaspar]

You should not use the env helper outside your config files when doing config:cache, that's why the value was empty when you tried to access it.

You can read more about it here https://laravel.com/docs/9.x/configuration#configuration-caching.

Hope it helps!

[systemsolutionweb]

@brunogaspar maybe do you know what happend here #42607?