- $this->addRule('mailerBatchLimit', ts('Must be an integer'), 'integer');
- $this->addRule('mailThrottleTime', ts('Must be an integer'), 'integer');
- $this->addRule('mailerJobSize', ts('Must be an integer'), 'integer');
- $this->addRule('mailerJobsMax', ts('Must be an integer'), 'integer');
+ $this->addRule('mailerBatchLimit', ts('Please enter a valid integer.'), 'integer');
+ $this->addRule('mailThrottleTime', ts('Please enter a valid integer.'), 'integer');
+ $this->addRule('mailerJobSize', ts('Please enter a valid integer.'), 'integer');
+ $this->addRule('mailerJobsMax', ts('Please enter a valid integer.'), 'integer');