SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting

[ShimonBalkay]

Hello,

I have tried adding my 2 SMTPs (SendGrid and Gsuite) both of them didn't work. With various ports and all, I contacted their support and also my hosting providor, they all said everything looks fine.

I am guessing its issue from WHMCS side. Can you guys tell me how to fix this error please?

SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting

 

 

[ShimonBalkay]

And the SMTP details are correct. Tried on many SMTP Test websites and it worked and connected.

[WHMCS ChrisD]

Hello @ShimonBalkay,

Thank you for your post on the WHMCS.Community.

Could you please try adding the following line to your configuration.php file then try sending and email and reviewing the output for any error messages:

$smtp_debug = true;

 

[Ashish Garg]

Hello 

I do this in configrution file:   $smtp_debug = true;

 

But my issue not solved till now.

After updating I got this error at the time of sending the mail to the customer:

 

2020-01-16 18:07:13 SMTP ERROR: Failed to connect to server: Connection refused (111)
SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting

Email Sending Failed - SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting

 

Please help me out how to solve this issue permanently?

[n10s]

On 1/16/2020 at 12:13 PM, Ashish Garg said:

Hello 

I do this in configrution file:   $smtp_debug = true;

 

But my issue not solved till now.

After updating I got this error at the time of sending the mail to the customer:

 

2020-01-16 18:07:13 SMTP ERROR: Failed to connect to server: Connection refused (111)
SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting

Email Sending Failed - SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting

 

Please help me out how to solve this issue permanently?

What was the resolution for this?! I'd love to get my setup going this weekend!

[AladdinJ]

I have same problem
any body could help

[Maly]

Also i have the same issue is there any ideas regarding how to trace and find out how can solve this issue

[sushichris]

I have the same problem, if I disable the firewall in WHM I use:

ConfigServer Security & Firewall - csf v14.05

The mail test works! I am still trying to pinpoint the exact setting that is preventing the mail to go through. I have tried a ton of different things so far... 

Here are the errors I get when the firewall is active:

SMTP Debug: SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting

SMTP Debug: SMTP ERROR: Failed to connect to server: Network is unreachable (101)

	
SMTP Debug: Connection failed. Error #2: stream_socket_client(): unable to connect to ssl://smtp.gmail.com:465 (Network is unreachable) [/home/user/public_html/vendor/phpmailer/phpmailer/src/SMTP.php line 344]

SMTP Debug: Connection: opening to ssl://smtp.gmail.com:465, timeout=300, options=array()

  This is what is on line 344 in the SMTP.php file

$host . ':' . $port,

Fingers crossed, if I figure it out I will update here 🙂

 

Chris

[sushichris]

I figured out what I needed to do! In>  ConfigServer Security & Firewall - csf v14.05

 

I added port 465...

Firewall Configuration Edit the configuration file for the csf firewall and lfd

IPv4 Port Settings

Allow outgoing TCP ports

TCP_OUT = 20,21,22,25,37,43,53,80,110,113,443,465,587,873,993,995,2086,2087,2089,2703

 

Hope this helps someone else 

 

[sushichris]

I figured out what I needed to do! In>  ConfigServer Security & Firewall - csf v14.05

 

I added port 465...

Firewall Configuration Edit the configuration file for the csf firewall and lfd

IPv4 Port Settings

Allow outgoing TCP ports

TCP_OUT = 20,21,22,25,37,43,53,80,110,113,443,465,587,873,993,995,2086,2087,2089,2703

 

And in the SMTP settings section I also had to remove port 465 from being blocked with SMTP_BLOCK on

 

Hope this helps someone else 

Chris

 

[datamerc]

On 10/18/2020 at 11:05 AM, sushichris said:

I figured out what I needed to do! In>  ConfigServer Security & Firewall - csf v14.05

 

I added port 465...

Firewall Configuration Edit the configuration file for the csf firewall and lfd

IPv4 Port Settings

Allow outgoing TCP ports

TCP_OUT = 20,21,22,25,37,43,53,80,110,113,443,465,587,873,993,995,2086,2087,2089,2703

 

And in the SMTP settings section I also had to remove port 465 from being blocked with SMTP_BLOCK on

 

Hope this helps someone else 

Chris

 

Thanks for the tip Chris!

It's also possible to add a single cPanel account username to the list in the "SMTP_ALLOWUSER" section in ConfigServer Security & Firewall (if you didn't want to update the allowed ports for all cPanel users).

[Webhospedaje.com]

Hello, we solved it by deactivating these  fields in the whm where the system is hosted.

Best regards
 

[rosemarie antonio]

 

Hello 

I do this in configrution file:   $smtp_debug = true;

 

But my issue not solved till now.

After updating I got this error at the time of sending the mail to the customer:

 

2020-01-16 18:07:13 SMTP ERROR: Failed to connect to server: Connection refused (111)
SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting

Email Sending Failed - SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting

 

Please help me out how to solve this issue permanently

[abyd]

Email Sending Failed - Email Sending Failed: SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting

I'm getting the same error I tried to make changes but still error is still there.

[hwila]

how do i get help from this company serouis my emails dont work.

Email Sending Failed: SMTP connect() failed. https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting

[WHMCS John]

There are a few potential causes for this error. For troubleshooting instructions and information on the most common causes, please see this guide: https://docs.whmcs.com/troubleshooting/troubleshoot-email/smtp-connection-errors/

If your hosting provider doesn't permit external SMTP use, consider using an API-based Mail Provider instead: https://docs.whmcs.com/system/email/email-tutorials/use-other-providers-for-system-mail/