Network is unreachable

  • verb2017

    (@verb2017)


    7 years, 5 months ago

    Hi,

    We’ve configured Post SMTP to work with smtp.office365.com it works sometimes, but sometimes we receive a “Network is unreachable” error and we’re not sure why.

    plesk log:

    2019-01-10 09:31:33	Error	62.253.30.130		14914#0: *11350873 FastCGI sent in stderr: "PHP message: ERROR PostmanWpMail: Exception code=0 message=Network is unreachable
PHP message: ERROR PostmanEmailLogController: Email was not successfully re-sent - 0" while reading response header from upstream				nginx error
2019-01-10 09:40:10	Error	62.253.30.130		18908#0: *11356027 FastCGI sent in stderr: "PHP message: ERROR PostmanWpMail: Exception code=0 message=Network is unreachable
PHP message: ERROR PostmanEmailLogController: Email was not successfully re-sent - 0" while reading response header from upstream				nginx error

    Diagnostic Test
    HostName: server217-174-250-67.live-servers.net
    OS: Linux localhost.localdomain 3.10.0-862.3.3.el7.x86_64 #1 SMP Fri Jun 15 04:15:27 UTC 2018 x86_64
    PHP: Linux 7.2.13 en_GB.UTF-8
    PHP Dependencies: iconv=Yes, spl_autoload=Yes, openssl=Yes, sockets=Yes, allow_url_fopen=Yes, mcrypt=No, zlib_encode=Yes
    WordPress: 4.9.9 en_GB UTF-8
    WordPress Theme: Basel Child
    WordPress Plugins: Redux Framework, Verb Branding Plugin, Addendio PLUS, Advanced Custom Fields PRO, XTEMOS Post Types plugin, CMB2, Coming Soon Page & Maintenance Mode by SeedProd, Contact Form 7, Croftwoods, Ley and Baines extensions, Disable Variable Product Price Range Woocommerce, Dynamic Pricing and Discounts for WooCommerce, WPBakery Page Builder, MailChimp for WordPress, Post SMTP, Recent Posts Widget Extended, Slider Revolution, Stripe Payments, UberMenu 3 – The Ultimate WordPress Mega Menu, Widget CSS Classes, WooCommerce Advanced Bulk Edit, Custom Price Labels for WooCommerce, WooCommerce EU VAT Assistant, WooCommerce Stripe Gateway, WOOF – WooCommerce Products Filter, WooCommerce Table Rate Shipping, WooCommerce, Yoast SEO Premium, WP All Export Pro, WP All Import Pro, WP All Import – WooCommerce Add-On Pro, YITH WooCommerce Ajax Product Filter Premium, YITH WooCommerce Category Accordion Premium, YITH WooCommerce Compare, YITH WooCommerce Wishlist
    WordPress wp_mail Filter(s): wp_staticize_emoji_for_email
    WordPress phpmailer_init Action(s): wpcf7_phpmailer_init
    Postman: 1.9.5
    Postman Sender Domain (Envelope|Message): coh-baines.co.uk | coh-baines.co.uk
    Postman Prevent Message Sender Override (Email|Name): No | No
    Postman Active Transport: SMTP (smtp:tls:login://smtp.office365.com:587)
    Postman Active Transport Status (Ready|Connected): Yes | Yes
    Postman Deliveries (Success|Fail): 119 | 110

    Any help is much appreciated.

    Thanks.

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  • shinerweb

    (@shinerweb)

    7 years, 5 months ago

    I see you are hosting with FastHosts, it might be worth checking with them to see if your account is hitting any sending limits.

    Whilst you are using Office365, FastHosts themselves use a white-labelled version of Office365 to handle their mail on some accounts (not 100% certain on that but that’s how it was a while back).

    They have filtering on certain ports (i.e. 587) that restricts the amount of mail sent.

    This is from their guide:

    Email sending limits

    Our mail platform is designed for business and personal use, not as a mass-mailing service. We limit the number of email’s that can be sent from a mailbox within set time periods. The following limits are in place on all mailbox types.

    50 mails in one instance
    50 mails in a 10 minute period
    1000 mails in a 24 hour period

    If you have sent many email’s within a short amount of time please wait before sending additional mails.

    It may be that you have a busy site causing multiple emails and are hitting a limit.

    The above does depend on what type of account you have with FastHosts, and what rate limiting they have applied.

    Post SMTP will attempt to send email and if there is a ‘random’ network connection issue, that tends to point to a problem outside of Post SMTP. It would be worth speaking to your host first to verify if your set-up would be affected by any rate limiting.

    Have a check of your Post SMTP logs to try and calculate how many emails your system is sending in total. (i.e. all mails from other plugins, wordfence, wp core updates or plugin updates, forms, and so on – they soon add up on a busy web site).

Viewing 1 replies (of 1 total)

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