email marketing though email campaigns from Sugarcrm

Hi Experts

I am having sugar crm professional edition hosted in my network behind the firewall , one of our marketing activity is to keep executing the email campaigns , for this we did subscribe for the smtp service from one of the email service provider the reason is to avoid our smtp server black listed,

1.  now by using the third party smtp service for the email campaigns, messages from the crm server to the thrid party subscribed smtp server are going very much slow hence this is resulting in huge messages/mails in the CRM server Queue and time taken to reach the third party smtp server is more ( too much delay)

2.whatever messages found to be delivered it is in the spam , we observed this for gmail accounts , please note we have also added SPF records
New TXT record is :
v=spf1 a mx include:netcore.co.in ~all


please do the needful how to avoid messages landing to the spam also delay from sugarcrm sever to reach thridparty smpt server

thanks in advance
D_wathiAsked:
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Lucas BishopClick TrackerCommented:
There are a variety of 'deliverability' internal and external factors that play into successful delivery of an email message.

For example, subject line, content, links, images, attachments, etc can all potentially trigger a spam filter. For these items, you can utilize an "email deliverability test" from a third party, to provide feedback on if your emails are potentially triggering common spam filters.

External of the content, there are other factors to consider as well. For example, I see you are using an SMTP service based in India. If the majority of your email opt-in list is located in India, this would potentially be helpful. However, if you are sending your messages outside of India, this could trigger spam filters as well.

You'd also want to make sure the SMTP service is not already blacklisted in some way. For example, send some basic, personal emails through the SMTP service into a gmail account and see if they are filtered into spam. If so, the SMTP service may be the culprit.

You'll also want to make sure you aren't sending a massive amount of emails over a short time period (ie. 100,000 emails in under one hour).

I recommend reading up on 'email deliverability factors' to make sure you are following common best practices.

In regards to why the smtp server connection is experiencing delays, this could be related to a variety of factors (your upstream connection, your smtp provider settings, etc.). I'd recommend contacting their support team for feedback on this issue, as it's likely something they've dealt with before.
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