Beefy Boxes and Bandwidth Generously Provided by pair Networks
Syntactic Confectionery Delight
 
PerlMonks  

Comment on

( #3333=superdoc: print w/replies, xml ) Need Help??
While it is unlikely that MX domain checks alone will cause high server load (depending on the network and DNS configuration), you can disable this functionality within Email::Valid by setting the parameter -mxcheck to 0 - This allows you to merely check the email as valid with regard to RFC822 specification or alike. eg.

print (Email::Valid->address( -address => 'email@address.com', -mxcheck => 0 ) ? 'yes' : 'no');

With regard to the number of email addresses getting bounced and ending up in retry or bad message queues, it may be worth either modifying your MTA configuration to minimise retries before delivery failure or rewriting the mail code to attempt SMTP delivery to the lowest preference mail exchanger directly and discarding the message if delivery is not achieved within a set number of attempts. You could also set up a mailbox directed to /dev/null for bounce messages.

There is of course a balance which you will be able to find between server load elevated by Email::Valid MX domain lookups and repeated MTA delivery attempts. My guess is that the load increase attributable to MX domain lookups will be negligible.

Good luck.

 

Ooohhh, Rob no beer function well without!


In reply to Re: Email Validation by rob_au
in thread Email Validation by Anonymous Monk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.
  • Log In?
    Username:
    Password:

    What's my password?
    Create A New User
    Chatterbox?
    and all is quiet...

    How do I use this? | Other CB clients
    Other Users?
    Others wandering the Monastery: (10)
    As of 2018-06-25 14:54 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?
      Should cpanminus be part of the standard Perl release?



      Results (127 votes). Check out past polls.

      Notices?