Error Couldn't resolve host 'email.us-west-2.amazonaws.com'

  • Greetings, I’ve configured plugin with my MyMail installation, with success credentials. Now when y try to send a campaign after few seconds got paused and show error

    Campaign XXXXXXXXXXX has been paused cause of a sending error: Couldn’t resolve host ’email.us-west-2.amazonaws.com’

    After put in contact with hosting support several times, MyMail plugin are able to send email campaign with default config, but without success on Amazon SES config. Every single port needed are open, as SystemInfo show

    Port 110 (pop3) open.
    Port 995 (pop3s) open.
    Port 993 (imaps) open.
    Port 25 (smtp) open.
    Port 465 (urd) open.
    Port 587 (submission) open.

    And still campaign cannot be sended. I’ve send any quantity of test email without problem, they work fine and email receive all delivered testing email, changed PHP sending version, but still campaign cannot be send, and error show over and over.

    Even into Amazon SES console, everything are just fine, domain validated, email validated, smtp credential and tokens revalidated, refreshed, reconfigurated, created and tested with others email (discarting email trouble), dozen of email test delivery; everything on Amazon SES are just working fine.

    What could be wrong?

    PD: attach Systeminfo log

    ### Begin System Info ###

    ## Please include this information when posting support requests ##

    SITE_URL https://xxx.xxxxx.com
    HOME_URL https://xxx.xxxxx.com

    MyMail Version 2.1.1
    Updated From N/A
    WordPress Version 4.4.2
    MyMail DB Version 20160125
    PHPMailer Version 5.2.14
    Permalink Structure /%year%/%monthnum%/%day%/%postname%/
    MyMail Licensecode xxxxxxxxx

    Newsletter Homepage https://xxx.xxxxx.com (#2535)
    Endpoints /confirm, /subscribe, /unsubscribe, /profile (Check: Passed)
    Track Countries Yes
    Country DB DB exists (2016-02-08 19:07:46, 1 day)
    Track Cities Yes
    City DB DB exists (2016-02-08 19:07:55, 1 day)

    WordPress Cron Available
    Cron Service wp_cron
    Cron URL https://xxx.xxxxx.com/wp-content/plugins/myMail/cron.php?7821490c5b1ea53a18b1e7966b55e125
    Cron Interval 1 MIN
    Cron Lasthit 2016-02-09 19:53:33, 1 min

    Delivery Method amazonses
    SMTP Port check no smtp
    Send at once 20
    Send limit 50000
    Send period 24

    Test Mail OK

    Port 110 (pop3) open.
    Port 995 (pop3s) open.
    Port 993 (imaps) open.
    Port 25 (smtp) open.
    Port 465 (urd) open.
    Port 587 (submission) open.

    PHP Version 5.6.14
    MySQL Version 5.5.42
    Web Server Info Apache
    Multi-site No

    PHP Safe Mode No
    PHP Memory Limit 256M
    PHP Post Max Size 64M
    PHP Time Limit 30 sec
    PHP Max Input Vars 1000

    WP_DEBUG Disabled
    DISPLAY ERRORS N/A

    WP Table Prefix Length: 3 Status: Acceptable

    Session Disabled
    Session Name PHPSESSID
    Cookie Path /
    Save Path /tmp
    Use Cookies On
    Use Only Cookies On

    UPLOAD_MAX_FILESIZE 64 MB
    POST_MAX_SIZE 64 MB
    WordPress Memory Limit 40 MB
    FSOCKOPEN Your server supports fsockopen.
    DOMDocument DOMDocument extension installed
    SUHOSIN Installed No

    wp_remote_post works
    External HTTP Requests not blocked
    Update Server Access works

    TEMPLATES Aero Market (blue): 1.0 by nutzumi
    Aero Market (blue boxed): 1.0 by nutzumi
    Aero Market (green): 1.0 by nutzumi
    Aero Market (orange): 1.0 by nutzumi
    Aero Market (orange light): 1.0 by nutzumi (default)
    Aero Market (purple): 1.0 by nutzumi
    Aero Market (red): 1.0 by nutzumi
    Aero Market (yellow): 1.0 by nutzumi
    Glenn (dark blue): 1.0 by nutzumi
    Glenn (dark cyan): 1.0 by nutzumi
    Glenn (dark dark): 1.0 by nutzumi
    Glenn (dark green): 1.0 by nutzumi
    Glenn (dark pink): 1.0 by nutzumi
    Glenn (dark purple): 1.0 by nutzumi
    Glenn (light blue): 1.0 by nutzumi
    Glenn (light cyan): 1.0 by nutzumi
    Glenn (light dark): 1.0 by nutzumi
    Glenn (light green): 1.0 by nutzumi
    Glenn (light pink): 1.0 by nutzumi
    Glenn (light purple): 1.0 by nutzumi
    Koble (boxed): 1.0 by nutzumi
    Koble (catalog): 1.0 by nutzumi
    Koble (container blue): 1.6 by nutzumi
    Koble (container cyan): 1.6 by nutzumi
    Koble (container green): 1.6 by nutzumi
    Koble (container red): 1.6 by nutzumi
    Koble (container violet): 1.6 by nutzumi
    Koble (container yellow): 1.6 by nutzumi
    Koble (full width blue): 1.6 by nutzumi
    Koble (full width cyan): 1.6 by nutzumi
    Koble (full width green): 1.6 by nutzumi
    Koble (full width red): 1.6 by nutzumi
    Koble (full width violet): 1.6 by nutzumi
    Koble (full width yellow): 1.6 by nutzumi
    Koble (header 2): 1.6 by nutzumi
    Koble (invoice): 1.0 by nutzumi
    MyMail: 5.2 by revaxarts
    MyMail2: 1.0 by revaxarts

    ACTIVE PLUGINS Force Regenerate Thumbnails: 2.0.5
    Google Analytics for MyMail: 0.5.1
    Hide My WP: 5.01
    MyMail – Email Newsletter Plugin for WordPress: 2.1.1
    MyMail AmazonSES Integration: 1.1.6
    WP-Optimize: 1.8.9.10
    WPBakery Visual Composer: 4.9.2

    CURRENT THEME Betheme: 11.5
    Muffin group (https://muffingroup.com)
    ### End System Info ###

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