Long delay in sending mails

Hey,

Noticed that it takes extremely long, 1000+ms, to send mail. Never use to take this long before, wondering any ways to speed things up.

My setup is:
SMTP-STARTTLS to smtp.office365.com:25 using Password (Login) authentication.
Even tried changing port to 587, no change in speed.

Diagnostic Test result : (removed personal info)

Mailer: postsmtp
cURL Version: 7.68.0
OpenSSL Version: OpenSSL/1.1.1f
OS: Linux runcloud-ubuntu-s-1vcpu-1gb-tor1-01 5.4.0-45-generic #49-Ubuntu SMP Wed Aug 26 13:38:52 UTC 2020 x86_64
PHP: Linux 7.4.16 C.UTF-8
PHP Dependencies: iconv=Yes, spl_autoload=Yes, openssl=Yes, sockets=Yes, allow_url_fopen=Yes, mcrypt=No, zlib_encode=Yes
WordPress: 5.7 en_US UTF-8
WordPress Theme: Astra
WordPress Plugins: Gravity Perks, Gravity Forms, Better Notifications for WP, Change Password Protected Message, Code Snippets, Colorlib Login Customizer, Cool  Timeline, Yoast Duplicate Post, Font Awesome, Gravity Forms Entries in Excel, Site Kit by Google, GP Limit Dates, GP Nested Forms, GP Populate Anything, GP Unique ID, Gravity Forms Advanced Post Creation Add-On, Gravity Forms Chained Selects Add-On, Gravity Forms Twilio Add-On, Gravity Forms User Registration Add-On, Gravity Forms Webhooks Add-On, Gravity Forms Utility, GravityView - Advanced Filter Extension, GravityView - Gravity Forms Calendar, GravityView - DataTables Extension, GravityView - DIY Layout, GravityView - Entry Revisions, GravityView - Gravity Forms Import Entries, GravityView Inline Edit, Math by GravityView, GravityView - Multiple Forms, GravityView, Gravity Forms All Fields Template, GP Auto Login, GP Conditional Logic Dates, GP Copy Cat, GP Limit Choices, GP Read Only, Magic Tooltips For Gravity Forms, Members, No Suggested Password, Post SMTP, Redirection, Simple Banner, Easy Updates Manager, TablePress Extension: Row Filtering, TablePress, Ultimate Addons for Gutenberg, UpdraftPlus - Backup/Restore, User Menus, WP Add Mime Types, WP Maintenance Mode
WordPress wp_mail Owner: /xxxx/wp-content/plugins/post-smtp/Postman/PostmanWpMailBinder.php
WordPress wp_mail Filter(s): wp_staticize_emoji_for_email, PostsmtpMailer->get_mail_args
WordPress phpmailer_init Action(s): PostsmtpMailer->phpmailer_smtp_init
Postman: 2.0.22
Postman Sender Domain (Envelope|Message): xxxx | xxxx
Postman Prevent Message Sender Override (Email|Name): No | No
Postman Active Transport: SMTP (smtp:tls:login://smtp.office365.com:25)
Postman Active Transport Status (Ready|Connected): Yes | Yes
Postman Deliveries (Success|Fail): 6194 | 33
Postman Email Log (Enabled|Limit|Transcript Size): Yes | 5000 | 128

This is the result of a Test Email:
Your message was delivered (1248 ms) to the SMTP server! Congratulations :)

Please advise, thank you for your time.

• This topic was modified 5 years, 4 months ago by wpbenq.