Extension missing: openssl

Hi @canuck069,

Thanks for reaching out. It looks like the OpenSSL extension is missing on your PHP installation. Please contact your webhost provider to install or enable OpenSSL.

I hope this helps!

Hi Sanjeev

In this case I am my own webhost provider. I have WordPress running on my Synology NAS server.
I looked at the link you included (along with other internet sources) and they appear to indicate that I needed to add “extension = openssl” to my php.ini file. I could not find one under wordpress but the one in /etc/php appears to be the one loading however it doesn’t appear to load. Even though it is looking in the correct folder /usr/bin

/etc/php$ php -i | grep ini
PHP Warning:  PHP Startup: Unable to load dynamic library 'openssl' (tried: /usr/bin/openssl (/usr/bin/openssl: cannot dynamically load executable), /usr/bin/openssl.so (/usr/bin/openssl.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
Configuration File (php.ini) Path => /etc/php
Loaded Configuration File => /etc/php/php.ini
Scan this dir for additional .ini files => (none)
Additional .ini files parsed => (none)
user_ini.cache_ttl => 300 => 300
user_ini.filename => .user.ini => .user.ini
Classes => AppendIterator, ArrayIterator, ArrayObject, BadFunctionCallException, BadMethodCallException, CachingIterator, CallbackFilterIterator, DirectoryIterator, DomainException, EmptyIterator, FilesystemIterator, FilterIterator, GlobIterator, InfiniteIterator, InvalidArgumentException, IteratorIterator, LengthException, LimitIterator, LogicException, MultipleIterator, NoRewindIterator, OutOfBoundsException, OutOfRangeException, OverflowException, ParentIterator, RangeException, RecursiveArrayIterator, RecursiveCachingIterator, RecursiveCallbackFilterIterator, RecursiveDirectoryIterator, RecursiveFilterIterator, RecursiveIteratorIterator, RecursiveRegexIterator, RecursiveTreeIterator, RegexIterator, RuntimeException, SplDoublyLinkedList, SplFileInfo, SplFileObject, SplFixedArray, SplHeap, SplMinHeap, SplMaxHeap, SplObjectStorage, SplPriorityQueue, SplQueue, SplStack, SplTempFileObject, UnderflowException, UnexpectedValueException

Any thoughts?

Thanks, Nigel

Just another update.
I looked at the php -i information a little closer and it does show that openssl is running, so now I am more confused why WP Mail SMTP says it is not.

 php -i | grep SSL
SSL => Yes
MULTI_SSL => No
SSL Version => OpenSSL/1.1.1l
OpenSSL support => enabled
OpenSSL Library Version => OpenSSL 1.1.1l  24 Aug 2021
OpenSSL Header Version => OpenSSL 1.1.1l  24 Aug 2021
OpenSSL support => enabled

and from WP MAIL SMTP

Versions:
WordPress: 5.7.2
WordPress MS: No
PHP: 7.3.24
WP Mail SMTP: 3.2.1

Params:
Mailer: smtp
Constants: No
ErrorInfo: Extension missing: openssl
Host: smtp.mail.me.com
Port: 587
SMTPSecure: tls
SMTPAutoTLS: /volume1/web_packages/wordpress/wp-content/plugins/wp-mail-smtp/src/Debug.php:183:bool(true)
SMTPAuth: /volume1/web_packages/wordpress/wp-content/plugins/wp-mail-smtp/src/Debug.php:183:bool(true)

Server:
OpenSSL: No

Debug:
Email Source: WP Mail SMTP
Mailer: Other SMTP
Extension missing: openssl

SMTP Debug:

Extension missing: openssl

I have tried uninstalling and reinstalling but I know that keeps all your configuration settings, so maybe it’s something in there? Just a guess.

Thanks, Nigel

Resolved
In case anyone else experiences this.
For a Synology NAS you need to enable extensions for WordPress in their Web Station application. I am not sure how they got turned off but once enabled everything appears to be working now. ??

Steps on Synology DSM 7:
1) Login to your Synology NAS
2) Open the Web Station application
3) Select “Script Language Settings”
4) Select the WordPress profile and hit [Edit]
5) Go to the Extensions tab
6) Enable the needed extensions (bcmath, curl, exif, imagick, openssl, zip …)
7) Hit [Save]