Stopped sending any emails

Hi - my installtion has stopped sending any email, daily or updates. I have checked the email setup on wordpress, manually dent email and the connections is working.

Below is my system report.

Best regards

### WordPress Check                Required                                               Detected                                     Status   ###

FileSystem Method                  = direct                                               direct                                       Pass        
MultiSite Disabled                 =true                                                  true                                         Pass        
WordPress Memory Limit             >=64M                                                  40M                                          Warning     
WordPress Version                  >=6.2                                                  6.5.5                                        Pass        

### PHP                            Required                                               Detected                                     Status   ###

cURL Extension Enabled             =true                                                  true                                         Pass        
cURL Timeout                       >=300 seconds                                          10                                           Warning     
cURL Version                       >=7.29.0                                               7.81.0                                       Pass        
OpenSSL Version                    >=OpenSSL/1.1.0                                        OpenSSL/3.0.2                                Pass        
OpenSSL Working Status             Yes                                                    Yes                                          Pass        
PCRE Backtracking Limit            >=10000                                                1000000                                      Pass        
PHP Allow URL fopen                N/A                                                    YES                                                      
PHP Disabled Functions             N/A                                                    diskfreespace,  dl,  exec,  passthru,  popen,  proc_nice,  proc_open,  shell_exec,  system, disk_total_space,            
PHP Exif Support                   N/A                                                    YES                                                      
PHP IPTC Support                   N/A                                                    YES                                                      
PHP Loaded Extensions              N/A                                                    Core, PDO, Phar, Reflection, SPL, SimpleXML, Zend OPcache, bcmath, bz2, calendar, cgi-fcgi, ctype, curl, date, dba, dom, exif, fileinfo, filter, gd, gettext, gmp, hash, iconv, imagick, imap, intl, json, libxml, mbstring, mysqli, mysqlnd, openssl, pcre, pdo_mysql, pdo_sqlite, posix, random, readline, session, soap, sodium, sqlite3, standard, sysvshm, tokenizer, xml, xmlreader, xmlwriter, xsl, zip, zlib            
PHP Max Execution Time             >=30 seconds                                           300                                          Pass        
PHP Max Input Time                 >=30 seconds                                           60                                           Pass        
PHP Memory Limit                   >=256M                                                 1073741824                                   Pass        
PHP Post Max Size                  >=2M                                                   256M                                         Pass        
PHP Safe Mode Disabled             =true                                                  true                                         Pass        
PHP Upload Max Filesize            >=2M                                                   256M                                         Pass        
PHP Version                        >=7.4                                                  8.3.9                                        Pass        
PHP XML Support                    N/A                                                    YES                                                      
SSL Extension Enabled              =true                                                  true                                         Pass        
SSL Warnings                       = empty                                                                                             Pass        

### MySQL                          Required                                               Detected                                     Status   ###

MySQL Client Encoding              N/A                                                    utf8mb4                                                  
MySQL Mode                         N/A                                                    ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION            
MySQL Version                      >=5.0                                                  10.6.17-MariaDB-1:10.6.17+maria~ubu2204      Pass        

### Server Configuration           Detected Value                                      ###

Accept Content                     text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7
Accept-Charset Content             N/A                                                    
Architecture                       64         bit                                         
Gateway Interface                  CGI/1.1                                                
HTTPS                              ON                                                     
Memory Usage                       5.98 MB                                                
Operating System                   Linux                                                  
Request Time                       1720695840                                             
Server Protocol                    HTTP/1.1                                               
Server self connect                Response Test O.K.                                     
Server Software                    Apache                                                 
User Agent                         Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/ Safari/537.36

### MainWP Dashboard Settings      Detected Value                                      ###

Abandoned plugins/themes tolerance 365                                                    
Basic uptime monitoring enabled    Yes                                                    
MainWP Dashboard Version           Latest: 5.1.1 | Detected: 5.1.1 Pass                   
MainWP legacy backups enabled      No                                                     
Maximum number of pages to return                                                         
Maximum number of posts to return                                                         
Maximum simultaneous install and update requests3                                                      
Maximum simultaneous requests      4                                                      
Maximum simultaneous requests per ip1                                                      
Maximum simultaneous sync requests 8                                                      
Minimum delay between requests     200                                                    
Minimum delay between requests to the same ip1000                                                   
Number of connected sites          5                                                      
Optimize data loading              No                                                     
Plugin advanced automatic updates enabledYes                                                    
Primary Backup System              API Backups                                            
REST API enabled                   No                                                     
Site health monitoring enabled     Yes                                                    
Theme advanced automatic updates enabledNo                                                     
Use WP Cron                        No                                                     
WP Core advanced automatic updates enabledNo                                                     

### Extensions                     Version                                                License                                      Status   ###

Advanced Uptime Monitor Extension  5.3.1                                                  Active                                       Pass        
MainWP BackWPup Extension          5.0.1                                                  Active                                       Pass        
MainWP Pro Reports Extension       5.0.4                                                  Active                                       Pass        
MainWP Sucuri Extension            5.0                                                    Active                                       Pass        
MainWP Vulnerability Checker Extension5.0.1                                                  Active                                       Pass        

### Plugin                         Version                                                Status                                    ###

Admin and Site Enhancements (ASE)  7.1.3                                                  Active                                       
BackWPup                           4.1.3                                                  Active                                       
MainWP Child                       5.1.1                                                  Active                                       
MainWP Child Reports               2.2                                                    Active                                       
MainWP Dashboard                   5.1.1                                                  Active                                       
WP Crontrol                        1.16.3                                                 Active                                       

Hey @moelholt

Welcome to the MainWP community!

I see in the system report that the usage of WP Cron is disabled in MainWP Settings. Are you using server-side cron instead?

Can you try sending a one-time report in Pro Reports and see if that email gets sent out?

This will help us determine if the issue is with email deliverability in general or just scheduled emails.

I did just try.
I can generate ethe report, but when i try to send i get the error “Undefined error. Email could not be sent”.


PS. I have not disabled the WP cron and i have only MainWP installed on this WP installation.


Thanks for the update @moelholt.

Based on the system report (Use WP Cron: No), it seems that the use of WP Cron is disabled in your MainWP Settings.

However, the inability to send Pro Reports shouldn’t be affected by WP Cron.
So it’s possible we’re dealing with two separate issues.

Would you mind opening a private Help Desk ticket so we can collect some additional information & investigate further?

And please refer to this Managers thread by its URL in the ticket.

To provide an update on this -

John has informed us that he uninstalled his SMTP plugin and installed a new one, and Pro Reports is now sending emails as expected.

The issue, therefore, appears to have been due to SMTP plugin configuration.

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