I am trying to get my Wordpress site (running on aiauto.cloud to send out email via my emailserver running in on server.cybxpert.com port 25251.
I have run GMASS SMTP Test Tool and it connects, and checked with Telnet - "Server Ready".
But ALL of the well-known plugins give me the same "failure to connect".
I have tried
WP-Mail-SMTP, POST SMTP Mailer, SMTP Mailer, and FluentSMTP, all of them refuse to connect, while GMASS and Telnet both connect !!!!
Here is the Connection log from SMTP Mailer v1.1.6:
2023-07-31 14:06:35 Connection: opening to server.cybxpert.com:25251, timeout=300, options=array() 2023-07-31 14:06:36 Connection failed. Error #2: stream_socket_client(): Unable to connect to server.cybxpert.com:25251 (Connection refused) [/home/aiaugdju/public_html/wp-includes/PHPMailer/SMTP.php line 389] 2023-07-31 14:06:36 SMTP ERROR: Failed to connect to server: Connection refused (111) SMTP Error: Could not connect to SMTP host. Failed to connect to server
I have double and triple checked the username and password. I have tried with and without TLS
I have been trying to get it working all day. Any suggestions ?
PS This is the SERVER info:
OS: Linux server167.web-hosting.com 2.6.32-954.3.5.lve1.4.90.el6.x86_64 #1 SMP Tue Feb 21 12:26:30 UTC 2023 x86_64 PHP version: 8.1.21 WordPress version: 6.2.2 WordPress multisite: No openssl: Available allow_url_fopen: Enabled stream_socket_client: Available fsockopen: Available
And this is from GMASS SMTP Tester:
Connected to smtp://server.cybxpert.com:25251/?starttls=when-available
<< 220 server.cybxpert.com ESMTP service ready
>> EHLO [172.31.11.248]
<< 250-server.cybxpert.com says hello
<< 250-ENHANCEDSTATUSCODES
<< 250-PIPELINING
<< 250-CHUNKING
<< 250-8BITMIME
<< 250-AUTH CRAM-MD5 PLAIN LOGIN
<< 250-AUTH=CRAM-MD5 PLAIN LOGIN
<< 250-XACK
<< 250-SIZE 0
<< 250-VERP
<< 250-SMTPUTF8
<< 250 DSN
>> AUTH CRAM-MD5
<< 334 PDk2MzFBMUQ4QHNlcnZlci5jeWJ4cGVydC5jb20
>> YWRtaW5AY3lieHBlcnQuY29tIDhiYWFjZTRkZTRlYzAyNTFiMzRjNjU4ZWRmOWZmZTI5
<< 235 2.7.0 authentication succeeded
>> MAIL FROM:<[email protected]> SIZE=571
>> RCPT TO:<[email protected]>
<< 250 2.1.0 MAIL ok
<< 250 2.1.5 <[email protected]> ok
>> DATA
<< 354 send message
>> From: [email protected]
>> Date: Mon, 31 Jul 2023 12:59:34 퍍
>> Subject: SMTP test from server.cybxpert.com
>> Message-Id: <38KMYH1QLKU4.KX1VW3033MDM2@WIN-AUIR3RRGP88>
>> To: [email protected]
>> MIME-Version: 1.0
>> Content-Type: multipart/alternative; boundary="=-qbnKY3QwxFYSrq/lTyiamw=="
>>
>> --=-qbnKY3QwxFYSrq/lTyiamw==
>> Content-Type: text/plain; charset=utf-8
>>
>> Test message
>> --=-qbnKY3QwxFYSrq/lTyiamw==
>> Content-Type: text/html; charset=utf-8
>> Content-Id: <38KMYH1QLKU4.41OSS1AA1OKI1@WIN-AUIR3RRGP88>
>>
>> <b>Test message</b>
>> --=-qbnKY3QwxFYSrq/lTyiamw==--
>> .
<< 250 2.6.0 message received