php - ZF2 uncaught exception on concurrent emails exceeds limit with SMTP server -

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zf2 throws uncaught exception when trying send multiple mail @ same time, using smtp server.

after sending 5 emails throws exception:

uncaught exception: "could not read host" zend\mail\protocol\abstractprotocol

this comes after smtp server sends error:

message submission rate client has exceeded configured limit

since thrown when destructor called not able catch in script. suggestion how catch this, in script.

there nothing zend framework 2 or other library. message mail service consuming pretty clear: you're exceeding rate limit.

anyway, have several options;

  • never send lot of e-mails in single while / loop since don't have cool paid e-mail service doesn't apply rate limit account. (paid or not every service yours applies rate limits prevent abusing. normal.)
  • add try {} catch() {} block in script , when exceed limit, stop, wait while , try again.
  • you may consider writing cronjob , cli script send x emails per minute.
  • implementing message queue sending emails consuming queue (x emails @ time) better if need send thousands of emails.
  • ask mail service provider increase limits.
  • change mail service provider if rates still not enough.

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